My friend Eric (aka Ottawa on the forum) was telling me about his newly inherited MINI. Three cylinders - but it has five wheel studs. That just seems wrong to me. Only 60% as many cylinders as wheel studs. A four cylinder with a five bolt pattern has an 80% ratio. My MG and one of my Miatas have a 200% ratio. The Tesla has DIVIDE BY ZERO ERROR.
So what car has the most out of whack lug nut to cylinder ratio? Any production cars that are lower than 60%?
Slow day huh?
I didn't spend a whole lot of time on this, Eric was looking for wheels and mentioned his three cylinder MINI used five lug wheels so I began to mock him for it. The rest of the research was done by thinking of my own cars :)
This is the opposite... 4 cylinders, 3 studs!
Do center lock wheels count?
An F150 7700 has 7 wheel studs and 8 cylinders. Not a lower ratio but a whacky one.
A Citroen 2cv with 3 wheel studs and 2 cylinders.
\/ My real answer. \/
A BMW i3 has 2 cylinders and 5 wheel studs though putting it at 40%!
How many lug nuts/bolts does an Isetta have? It’s only got a 1 cylinder engine.
But what about a Turbo/Supercharger multiplier? Using hillclimb rules like:
So my 3cyl is worth 3*1.7=5.1 so I'm at the correct amount of adjusted cylinders vs. lug nuts
Saron81 said:Do center lock wheels count?
Ooooooo, nice lateral move. That's going to give some real outliers.
The Tesla's mathematically feasible, it's just 0%. 
I figure there are probably a bunch of medium or heavy duty trucks that hit 60% via big sixes and ten lugs, but that wasn't quite the question...
My MG, Wolseley, BMW, and pickup are tidily aligned at 100%. The Mini is just as observed; too weird to discuss. The Ranchero is a funky 160%...
Berkeley sport. 2 cylinder, 5 lug
My Mustang came with a 6 cyl and 4 lugs, a nice robust 150%
The Bond Minicar may be one of the winners here, single cylinder and either a 4 or 5 lug wheel. Can't find a good enough picture of the wheels without the hubcaps on.
How are we scoring rotary engines?
My trailer has a single piston generator and 8 lug wheels. 12.5%
https://www.corvettes.nl/gm_prototypes/stingray3/index.html
Three lug nuts, eight cylinders, and if memory serves, Zora refused to get his picture taken in front of it because of that mismatch.
Nissan and Toyota pickups cone with 4-cylinders and 6-lugs...
911 GT3...600%
There are a fair amount of 4cyl trucks with 6 lug wheels (Taco, Hardbody, Dakota, etc.) (66%)
On the other end of trucks, 5 lug Tundras have a 8:5 ratio (160%)
Before Frenchy gets in here... XJS V12 has a 12:5 ratio (240%)
In reply to tuna55 :
At least the 3 lug wheels are on 3 spoke wheels.
How about formula cars. Some had V12 with a single knock-off nut. 1200%
Mr_Asa said:My Mustang came with a 6 cyl and 4 lugs, a nice robust 150%
the 80's Mustang GT was a V8 with 4 lugs - so 200%.
IIRC, it didn't get 5 lugs until the 1994 and the SN95?
In reply to Ian F (Forum Supporter) :
No, V8s had 5 lug the first year, that went up until the Fox platform when they dropped down to 4 lugs. I think the Mustang II had 5 lugs.
How do you score this?
10 lugs per 8 rollers, and 18 lugs on the drive sprockets, but one "wheel" and a jet turbine for an engine.
The B.U.T.T. has 10 cylinders and 8 lugs making it 125% more holes in a hub than in the block!
Not sure if single-lug wheels count. Maybe that's like a separate class or something.
How about 10-lug wheels on a six-cylinder truck? Is there a four-cylinder variant?
How this?
REPU has two rotors and six lugs.
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