A big segment of the sports car-collecting hobby is moving
toward keeping things perfectly stock. It’s becoming
unfashionable to change an original paint color or even eliminate
hubcaps in favor of aftermarket wheels.
Sure, the resto-mod craze is raging in the American muscle
segment of the market.…
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If I recall, nothing you did so far or proposed to do is irreversible. It's not like you tubbed the car or anything. Second, you took it on a long family trip and it didn't fit your needs. There's enough old Mercedes sedans around so no one would object,especially since the actual driving experience will be so much better. As for your Shelby, you didn't hack that car up either. You said yourself the "original" motor wasn't entirely original. I'm sure you still have it somewhere. Regardless of what purists think, if you didn't step in and "restore" it, the car would probably end up parted out. Should you go absolutely crazy one day and decide to sell it, the Shelby will be a MUCH better basis for a ground-up original resto than the rode-hard-and-put-away-wet thing you started with, especially considering the rust. Finally, if everybody wants concours-correct cars, why is a certain Corvair burning up eBay as we speak? Plenty of non-stock goodies on that one but that hasn't stopped the price going up 64 times.