I gave the "most missed"car some thought, my MGA race car is right near the top. I worked for months making the mold for the headrest fairing. I had also made a wood pattern and had cast an aluminum manifold set up for 4 1-1/4 SU carbs, and ported out the intakes as much a I could attempting to de-siamese the head. That didn't work, took the de-siamese splitters out and it went like gangbusters. Rode like a Cadillac compared to my open wheel cars, cornered as flat as a pea on a plate. I even beat an older V8 powered Corvette with it on one occasion.
