As proof that changing to two doors and removing the B-pillars can improve nearly any car, the W123 Mercedes works really well. The sedan version is nice-looking if conservative, and you could say the same for the wagon, but the coupe adds a touch of elegance and style to the otherwise functional design. And you still get all the great attributes of a W123 Mercedes, though its frameless, pillarless windows might give a little more wind noise than its siblings. Unfortunately, the majority of the coupes sold in the North American market came with the OM617 and OM617A 5-cylinder (“A” adds the turbo) engines that anyone would admit can be noisy, smoky, and also have ridiculous longevity. What if you wanted all the solidity without the diesel markup, and maybe you didn’t need a car that will do 300,000 miles between rebuilds? Check out this 1977 Mercedes 230C for sale for $2400 in Stevenson, WA.