Black-on-black 1999 M Coupe with 21k miles, S52 inline-six, five-speed manual, limited-slip diff, and original everything. This is the unloved M car that's finally getting its due—values climbing while clean examples evaporate from the market.

BMW built exactly 103 M6 Gran Coupes with a manual gearbox—a North American-only allocation that makes even a basic white example a legitimate collector piece. The S63 twin-turbo paired with a proper clutch pedal changes the math entirely. Prices on these have quietly climbed as people realized what they slept on.