Replica vs. Real: Superformance MKIII and the Shelby Cobra

Steve McQueen didn’t wear replica Persol sunglasses. He had the real thing. His Porsches, Cobras and Ferraris were also all genuine. Big difference between McQueen and the rest of us: He was a world-famous movie star with some fairly deep pockets. He also lived during the heyday of sports cars, when the latest and greatest were as close as the local dealership.

Today’s enthusiasts have to face some different realities, thanks in large part to the law of supply and demand. Take the legendary Cobra as an example: Most of us would love to own one, but Shelby only built a few hundred copies. End result? Prices are through the roof. Logical solution to this situation? Replicas.

Replica cars have faced some tough opposition through the years, ranging from mild indifference to full-fledged disdain. What’s the reality of the situation? Does going with a replica mean getting a less desirable car? Does owning one make you a second-class citizen? Will young children drop their Wii controllers when they point and laugh at you?

Reality Lessons


We hate to deliver the bad news, but there are some very desirable cars out there that you will never own. For example, Chevrolet only built five copies of the 1963 Grand Sport Corvette. While all five still exist, we just don’t see one coming up for sale anytime soon. And if one does, well, the price is probably going to be on the steep side.

Other classics have become too valuable for many of us. Have you checked Cobra prices lately? Cobra roadsters—and forget about trying to buy a coupe, since only six of the seven built are known to exist—currently trade in the mid- to upper-six-figure range.

Even if you can afford the cost of ownership, are you prepared to face the realities of the purchase? Will you get heart palpitations every time someone gets within arm’s reach of the soft aluminum bodywork? Will questions about the car’s authenticity drive you crazy? (Oddly, those who drive Alfas, Sunbeams or Triumphs rarely have to justify the provenance of their cars.)

Then there’s an important question for those who see cars as investments: Do the prices still have much room for growth, or are they currently maxed out?

There’s one other factor to consider when buying a rare classic: Do you want to be an owner or a caretaker? Every time you make a modification, personalization or upgrade to a rare collector car, you’ve probably hurt the value. In other words, forget about modifying a real Cobra to fit your tastes and desires. What you buy is what you get.

If you’d rather have a classic that doesn’t face so many restrictions, maybe it’s time to expand your horizons.

Nothing New

A good, high-quality replica like our blue Superformance MKIII will usually get all the visible details right, like the kinky T-handle shifter and oddball mirror location.

A good, high-quality replica like our blue Superformance MKIII will usually get all the visible details right, like the kinky T-handle shifter and oddball mirror location.

Replica cars are nothing new. Reproductions of pre- and postwar Mercedes-Benz models have been with us for decades. The first Cobra copies started showing up in the early ’70s.

The industry has seen a lot of ups and downs since then, as replicas have ranged from laughable copies to competent duplicates. In fact, this sector of the market had a terrible reputation 20 years ago. There were many companies, both large and small, that took deposits and then skipped town or couldn’t fulfill orders because they didn’t pay their suppliers.

The flakes are mostly gone these days, replaced by very legitimate companies like Factory Five Racing, Superformance and Kirkham Motorsports. These are big outfits, too. Hi-Tech Automotive, for example, has grown into a major manufacturer that uses 240,000 square feet spread between 15 buildings. Their 600 employees produce about 400 cars per year, including those sold under the Superformance brand name.

While some of today’s replicas do face build issues, more often than not it’s the genuine articles that suffer from quality problems—and that’s before they’re exacerbated by 40 or 50 years of use and abuse. Most replicas actually correct ills associated with the originals. From fixing the suspension geometry to enlarging the cockpit so normal-sized people can fit, the replica industry has gone a long way to redesign and repair what was wrong with the originals.

“In general, the replica industry has improved dramatically with the growth in technological advances,” explains Factory Five’s founder Mark Weber. Since 1995, this company has produced about 6000 Cobra replica kits.

“Although 3D modeling is the current frontier for design and engineering for top tier manufacturing companies, Factory Five may be the only replica company to currently utilize this technology,” he continues. “That being said, many companies are using CAD/CAM software now, a process that simply wasn’t available when the original cars were constructed. In terms of safety, rigidity and robustness, replicas as a whole surpass their ‘original’ cousins simply because of the technological leapfrog that is afforded to current manufacturers.” Today’s replicas can also take advantage of simple safety advances like collapsible steering columns, modern tire sizes and dual-circuit brake systems. These items simply weren’t common 40-plus years ago.

Something to Be Said for New

Smaller underhood details like the MKIII’s aluminum radiator overflow tank offer more opportunities to improve over the original and add some visual flair.

Smaller underhood details like the MKIII’s aluminum radiator overflow tank offer more opportunities to improve over the original and add some visual flair.

While the restoration of a precious classic would, in theory, make the car seem new, unfortunately that is not entirely the case. Good or bad, these originals are still old designs that use old technology. And quite honestly, even if age weren’t an issue, not everyone is up for repairing rust, stripping paint and freeing frozen bolts.

Most replicas, on the other hand, use new parts—and there’s something to be said for modern powertrains. While a real twin-cam Lotus 7 might look good right now, having to rebuild the engine every few years won’t be so appealing. The similar-looking FM Westfield, on the other hand, features a late-model Miata engine, fuel injection and all. Miata engines can easily outperform their earlier ancestors while lasting nearly forever. Likewise, the Lotus 7-like Bruntons use tough-as-nails GM V6 engines.

And have you checked out the latest small-block V8s from Ford and Chevy? They’re a nearly perfect mix of performance and reliability. Stick the right transmission behind one, and they’re quite efficient, too. These new cars are not only reliable and easy to own, but many are quite fast. “Nostalgia is great,” Factory Five’s Mark Weber says, “but modern beats vintage every time.” He gives an easy-to-digest example: The fastest original 427 Cobra to circle the full course at Virginia International Raceway did it in a record 2 minutes, 14 seconds. Factory Five Challenge cars running stock 225-horsepower, 5.0-liter Mustang engines can cover the same ground with five seconds to spare. Higher-horsepower Factory Five cars can run close to 2-minute laps at the track. “The legend is not even close,” he observes. ###Collector Value? Obviously a real Cobra, Porsche Spyder or Gullwing Mercedes-Benz is worth more than a replica. Call the genuine articles the automotive equivalent of a blue chip investment, as their values tend to trend generally upward. But there have been dips in the market. Can you stomach them? We have watched Cobra prices take $100,000 swings before hitting their current record prices. If you buy that real Cobra today, what if you need to quickly sell it to free up some cash? And are you willing to see its value fall before coming back up to record levels? Fortunately, they only built a few of these things and everyone wants one. Unfortunately, you just might not see the appreciation during your ownership tenure. Quality replicas, while certainly not investment cars, often don’t depreciate too badly. Hayes Harris, owner of Wire Wheel Classic Sports Cars, deals in used replicas—especially the Birkin S3 Lotus 7 replica—and says that while these cars still depreciate, there is a strong market for good, used replicas.

Face to Face


Sure, you can debate whether a replica can hold a candle to the genuine article until you’re blue in the face, but nothing helps generate some real answers like a friendly face-to-face comparison. So we lined up both sides of the equation. Jim Maxwell brought along the real deal, a genuine 427 Cobra. Like many of the 427 Cobras, this one is powered by a 428-cubic-inch engine, since it was easier to drive and saved the ever-frugal Carroll Shelby a few bucks. Mike Stenhouse supplied the replica, bringing along his Superformance MKIII. Mike is the club registrar for Second Strike, an owners’ group for Superformance cars, and has owned his machine for 11 years. While we could have borrowed a brand-new car from Superformance dealer Olthoff Racing, we felt that Mike’s car would be more representative of a typical example.

The Real McCoy


Few cars have inspired so many: The original Cobra has been the subject of stories, movies and even songs. The legend endures, and today just about every car enthusiast would list time behind the wheel of a genuine 427 Cobra as a life-altering experience. In its day, the 427 Cobra was arguably the pinnacle of performance. It was a readily available street car that could accelerate from zero to 100 and back to a standstill in about 131/2 seconds. That record stood for many years. While a large number of cars can now match or beat that feat—a late-model Corvette Z06 can easily run with a Cobra for a fraction of the cost—the Cobra is still one of the most legendary cars ever built. It has just the right mix of raw American muscle and bad-boy attitude. (Truth be told, however, they were perhaps a little too raw for many drivers, and Ford dealers actually had a lot of trouble selling the cars; perhaps some credit should actually be given to the replica companies for keeping the flame alive.) Up close and in person, the Cobra feels rather ordinary at first encounter. The driver is met by a large, wood-rimmed steering wheel and a bank of gauges fitted to a flat, vinyl-covered dashboard. The look and feel are certainly more purposeful than opulent. That said, a Cobra is not really uncomfortable. The classic leather bucket seats are rather welcoming, if a bit too upright. (Many owners prop up the front of the seats to tilt them back, as they are not adjustable for rake.) Unlike a modern car, the body seems designed so the driver’s left arm can reach the wheel while perfectly resting on the top of the door. Turn the key, and the big-block Ford quickly roars to life. There is nothing fussy or fiddly here; the car starts right up and the exhaust gets all of the attention. While loud, it’s not deafening—better than anything we’ve heard on the radio lately. The clutch is surprisingly compliant. The brake pedal, while requiring a firm touch, rewards the driver with very confidence-inspiring performance. And despite the awkward shift lever, changing gears is buttery smooth. Once underway, the unassisted rack-and-pinion steering feels light, with little, if any, play. To say that thrust is ample is an understatement, but the car does not feel overpowered. The 428 engine was rated at 335 horsepower, a figure that many modern SUVs can top. So while the Cobra will leave with alacrity, its power is not awe-inspiring. Perhaps we modern drivers have become too jaded, but car owner Jim Maxwell readily admits that the legend has been built up way out of proportion. The abundant supply of torque does have a nice benefit, though, in that the engine feels almost calm and lazy when going down the road. There’s rarely a need to downshift; just solve the problem with a little more throttle. As far as handling goes, again, the legend outshines the actual car. While it’s not nose-heavy or evil, there is some low-speed understeer, though at least it’s predictable. Few would call the Cobra the best chassis ever built, but it does handle nicely. The weight bias for the big-block car is actually better than rumored, with about 48 percent of the mass up front. The Cobra’s biggest vices are the prodigious amount of heat that fills its cockpit and the generally nervous twitchiness it experiences when encountering undulations. Certainly both of these problems can be solved, but that brings up a sticky point: Should these cars be kept original or modified? As Jim Maxwell points out, he doesn’t really feel like he owns this car; he calls himself more of a guardian. All in all, while the Cobra feels old, it feels good—and actually much better than most of its rivals from the mid-’60s. It has plenty of motor, looks like a million bucks, and rides relatively comfortably with few creaks and rattles.

A Worthy Successor


A quick look through our Superformance’s logbook shows that this car was built to run, not simply to be admired. It has covered about 42,000 miles in 11 years, with 3000 of those miles spent on track. Owner Mike Stenhouse lives in Davidson, North Carolina, and has run at several East Coast tracks: Lowe’s Motor Speedway, Virginia International Raceway, Carolina Motorsports Park and even Lime Rock Park up in Connecticut. Interestingly, Mike doesn’t own a trailer and drives the Superformance to these track events. Only once did the car need help getting home, and that was only because Mike zinged the engine. He doesn’t even change the setup once he arrives at the track: it’s a straight unpack-and-go operation. If the Superformance is a copy of a real 427 Cobra, then it should feel the same, right? Well, yes and no. As genuine Cobra owner Jim Maxwell was quick to admit, well-built replicas like this one are actually faster, safer and more fun to drive than the originals. While Jim’s words ring true, there were certainly more similarities than differences between these two cars. The overall experiences were just so close—the view from the cockpit, the music coming from the pipes and the way the top of the doors made the perfect armrest. Then some small differences cropped up—like just how well the Superformance is built compared to the original. While the real Cobra is a pretty tight old car, the 11-year-old Superformance felt brand-new. Not a squeak, rattle or flaw could be found. Credit for that has to go to the modern South African factory that produces these cars. Unlike the originals, the Superformance cars come as rolling chassis, leaving the owners to choose their own powerplants. Mike went with a potent small-block Ford that, appropriately enough, displaces 427 cubic inches. The engine is based on a four-bolt main Ford Racing aluminum block; boring it to 4.125 inches and running a 4-inch stroke delivers the magic number. It also features a forged steel crank, forged steel rods, forged pistons and David Bamber-ported Edelbrock Victor Jr. heads. This engine puts out 550 horsepower on the dyno. “The drivetrain was selected for maximum acceleration without excessive wheelspin, road course performance, exciting back road cruising and relaxed interstate cruising,” the car owner explains. “First gear provides a brisk but controlled 2.4-second sprint to 52 mph. Second and third are good road course gears, with fourth for straightway speeds. Fourth is also right on the money for back road blasting. Fifth provides relaxed and reasonably economical interstate cruising.” The Superformance was noticeably quicker off the line than the real Cobra, and once underway it was no contest—a modern chassis and a big boost in horsepower gave the replica a huge advantage. Our Superformance was also running a more leisurely final drive—a 3.08:1 vs. the 3.73:1 found in the real Cobra. If the gear ratios were equal, the performance gap would have been even wider. Both cars demonstrated similar handling and braking traits, although the Superformance had a heavier steering feel. On the other hand, its chassis felt better composed over imperfect pavement. And despite the nearly 100-degree temperatures of our test day, the Superformance’s cockpit never got hot. The replica’s do-it-all manners are certainly hard to ignore. “Imagine a back road sprint to the Rockingham quarter-mile drag strip and ripping off the FTD on street tires with the only preparation being taking the top out of the trunk,” Mike explains, “then a 1300-mile vacation with spouse to the Gulf Coast of Alabama; then a four-day weekend running the Tail of the Dragon with serious mountain road work there and back; then some hot laps around the VIR North Course at SAAC 31—all in a three-month period without even changing the tire pressure.”

Who Wins?


Having driven literally hundreds of different classics ranging all the way from a Berkeley microcar to a Bentley limo, we’d have to say that the original Cobra holds its own quite well. We could think of few cars we would rather take on a tour like the Carolina Trophy or Colorado Grand. The real Cobra is a blast to drive, relatively comfortable and dead simple. Unlike other exotics, its mechanical parts can be as close as your local NAPA store. Try that with a Ferrari Dino. Nevertheless, the Superformance replica has a lot going for it. Compared to the original, it’s faster in a straight line, handles better and costs much less to own. While we didn’t perform any crash testing, we’re tempted to assume that technology makes the newer car safer. Its pedigree—or lack thereof—is probably its biggest black mark. Vintage race and tour organizers are simply unlikely to welcome replicas like the Superformance. Our two car owners came up with their own solution to this dilemma: The ultimate setup, they decided, would be an original Cobra to cherish and a replica to actually drive and enjoy. Special thanks to Tom Cotter and his son, Brian, for their help in organizing this comparison. We’re also grateful to car owners Jim Maxwell, Mike Stenhouse and Olthoff Racing for their cooperation and assistance.

10 Tips for Success


Most replicas don’t come fully assembled. At the most, they’re offered as rolling chassis still in need of drivetrains; at the least, they’re packaged as do-it-yourself kits. In other words, when you’re getting a replica, you’re getting a project. Staying on task and building the car of your dreams is a mental exercise as much as a physical one. Keith Tanner, author of “How to Build a Cheap Sports Car” and technician at FM Westfield, has been there before on both a professional and personal level. Here are his 10 tips for successfully completing such a project. 1. What Are You Building? Ever wonder what it is that makes some cars stand out from the crowd? It’s not necessarily the budget or the rarity. It often has more to do with the builder having a clear idea of the finished product. Everything fits into this vision as if it’s a framework. So, what’s your vision? What’s the look you’re after? What’s your car’s intended purpose? If you can describe the car in detail before turning that first bolt, you’ll build a better one. 2. Make a Budget Money: It rules our lives, and it will rule your project. Before you start, prepare a budget and prepare yourself for the bottom line. Get a parts list that covers everything needed to finish the kit, and try to come up with the costs for building the car. Be realistic. Now add 20 percent to that figure. Yeah, that’s more than you’re expecting to spend. That leads us to the next step. 3. Know When to Blow the Budget You’re going to find throughout the build that it’s easy to spend more money. Maybe you want a set of Auto Meter Cobra gauges instead of the less expensive Z-Series pieces, or perhaps you’re tempted to go with a brake upgrade kit. Here’s one place that your vision and plan really come in handy. How does your budget buster fit in with your final goal? Is it going to help or not? Don’t be afraid to spend a bit more money, but make sure it suits your car. 4. Make It Social This is supposed to be fun, right? So get some friends involved. It’s easy to get people to come hang out in the garage if you’re cooking up something cool. Even if they’re not actually working, you’ll find that having a second set of eyes can be helpful. At the very least, you can get them to read you the instructions—or offer unsolicited advice. 5. Pay Attention to Detail Most often, doing a job well doesn’t take much more effort than simply doing a job quickly. Whether the task involves routing wires, installing heat-shielding or stopping a rattle, spending just a little more time on each step can make the whole project that much nicer. This collection of small, thoughtful touches will make your car a real show-stopper, as well as a more reliable machine that’s easier to work on. 6. Know When to Walk Away If one particular job has you stumped, don’t get frustrated and do something both you and the car will regret. Move on to something else for a while, whether it’s a different aspect of the project or finishing “Moby Dick.” Once you return with fresh eyes, you might find that your insurmountable problem isn’t such a problem after all. 7. Lead a Healthy Fantasy Life When you build a car, you’re bringing a fantasy to life. Keep the fantasy fresh. Feel free to stand back, look at the car and dream. Or sit in the car and make noises. Or watch “Le Mans” again—whatever it takes to reignite the fires of enthusiasm. 8. Set Milestones and Celebrate Them Even if you start into a project with no expected date of completion, you’ll eventually come up with a finishing target. It might be a birthday, club meet or simply the fact that you’d like your garage back. But even the smaller milestones can be celebrated: The first time the car rolls across the garage floor, the first time the engine fires up, or that first drive. Set targets and reward yourself. 9. One Step at a Time Building a car isn’t one job—it’s hundreds of small ones. That sounds much worse at first, but it’s not. Don’t get discouraged by the amount of work ahead of you; focus on the next little job. Instead of worrying about installing the entire interior, concentrate on installing the tachometer and wiring it up—then move onto the oil pressure gauge and then the water temperature gauge. Before you know it, you’ll find that someone went and put together your whole dashboard. 10. Get Organized Keep a whiteboard in the garage and use it to maintain a list of jobs. This will help keep you focused, and you’ll find great satisfaction in crossing off the steps. For bonus points, categorize the jobs under “clean” and “dirty” headings. Clean jobs are short ones that are, well, clean. That’s for when you have 15 minutes and just want to get something done. Dirty jobs take longer and require more cleanup. Getting a dirty job finished is very satisfying, but working through a couple of quick clean jobs is a great way to spend half an hour.—Keith Tanner

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GLK New Reader
5/14/19 7:33 p.m.

Keith Martin used to call them Tupperware Cobras, but Carroll Shelby legitimized Cobra replicas with his cleverly named, “Continuation Cobras.” Most Kit cars especially those that mimic Ferrari’s and Lamborghinis are a joke, but the Caterham 7, Most AC Cobras, and all Meyers Manx kits, not to mention the old 50s kits like the Devin Roadster (I’m sure I’ve left some out but you get the idea) are legitimate cars that should not warrant any disdain by so-called purists. 

RMVR53 New Reader
5/14/19 9:51 p.m.

Don’t forget the Westfields and Lynx. The Westfield 11 is an excellent "rendition" of a Lotus 11. The body could be had in fiberglass or aluminum, and the chassis while similar was properly gusseted in all the right places while running MGB drivetrain/brakes/etc. The Lynx D Type?...a class by itself at a fraction of the original - if you can find one.

Another company thats been around a long time is RCR (Race Car Replicas). Started in the early 80's as Marauder Cars building replicas of the GT40, Lola T70, McClaren M6GT, Chevron B16 and a few others they were available from a "15ft replica" on a VW chassis and running gear/etc up to a full tube-frame and aluminum monocoque chassis running V8 power and independent suspension at all corners. The new compant with their modern construction techniques and half a dozen new/different cars makes them a stand-out in the replica field. If I remember correctly, Lola even granted them "continuation" status on the T70's they are building. 

wspohn Dork
5/15/19 11:47 a.m.

I have nothing against replica and kit cars per se, but I have no time for badly done cars of that ilk.  Not everyone does as good a job as Factory Five.

In fact most of the kits that were used to rebody cars in the old days cut corners in quality to promote sales, ending up using poorly chosen windshields from other cars that looked simply wrong in a replica, or torturing specs like the wheelbase to fit a rebody on something not meant for it.  Take a look at a Countach with stock Fiero interior some time....

Having said that, they did get it right, even in the early days (the Jamaican bodied MGA I own is one of the very few from the 60s I'd even look twice at) and quality has risen in later products like the 350 Porsche replicas and Factory Five models.  As the article points out, they are a valid alternative for those who can't afford a real classic (I knew I should have sold the farm to buy that $20K real Cobra back in the 70s....)



terracer New Reader
5/21/19 5:51 p.m.

Great article.  The first time I saw Gumball Rally I was bitten with the Cobra bug.  However having become a Porschephile, a 356 replica seemed the perfect car for me.  After doing my homework on the company in Tenneessee which made the Subaru powered bathtub replicas, I sent them my order along with eighteen grand to begin the build.  I was assured that leather samples for the upholstery were forthcoming along with a few other choices I had to make.  They never showed.  My eighteen large were gone - never to be seen again.  The guy declared bankruptcy and I was one of many left hanging.  I was told several buyers in Florida had paid for their dream car in full...   A while back I saw where the guy had reestablished and actually had a youtube channel trying to once again attract speedster replica buyers.  That just doesn't seem right to me... SO the lesson here is do your homework before you write a check.. (I am in NO way trying to associate Superperformance or any of the top line guys with the ones who take the money and run-)

Avalanche325 New Reader
5/23/19 1:04 p.m.

Nice article. Great information for anyone that is considering the replica journey. I own a Factory Five MKIV roaster (Cobra replica). Bulding it was an amazingly fun and rewarding project. There are forums that help you through any issue, question, or opinion that you can imagine. I drive my Cobra several times a week, do Cobra club long distance cruises, autocross every month, and am now tracking the car. None of those would be happening with an original. There are guys that still race them, which I have mad respect for. However, most originals hardly ever move, and I get it. WIth a replica, you can get out there and enjoy the million dollar car experience at an affordible price. As mentioned, there are just about ready to run cars, or build it yourself. Customizing is not a sin and neither is driving the piss out of it. I do have to answer "Is it real?" just about every week. But so do owners of originals.

frenchyd UberDork
6/16/19 4:04 a.m.

In reply to Avalanche325 :

There are a lot more Devin bodies out there now than Bill Devin ever made. In the 80’s & 90’s a whole series of Echidna’s was put together ( Devin Body on to of a 1955/56/57 Chevy chassis. ) 

i made a set of Devin molds to  replace the badly damaged and frequently repaired DeMar  and that opened the floodgates.  Then I dug a couple of them out of barns etc.  and flogged them off when I realized I wouldn’t have any time to do them properly. 

Making a mold from an existing body is very cheap and quick.  Yes there is a little to learn but it’s anything but complicated.  

Welding up a vintage chassis is simple and straightforward.  Add a few vintage pieces and for a modest cost you too can go vintage racing  


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