1987 911 Turbo Coupe M505

Born from the dominance of the 935 in endurance racing, the Slant Nose (Flachbau) 911 Turbo began as a one-off commission for Mansour Ojjeh, a key Porsche client and motorsport backer. Inspired by the 935’s aerodynamic flat-front design, Ojjeh’s custom-built 911 Turbo set the stage for Porsche’s Special Wishes Program, which handcrafted early Slant Nose cars for select customers. Due to increasing demand, Porsche officially introduced the M505 Slant Nose option for the 911 Turbo in 1987, offering a factory-built version of the race-inspired design.

This 1987 911 Turbo Coupe is a factory M505 Slant Nose example, finished in Black over matching Black leather and showing 42,000 miles on a repaired odometer (2025). It benefits from a documented engine rebuild in 2012 and more recent maintenance including a replaced ignition coil in 2022 and fresh brake fluid in 2025. The gallery includes thorough documentation, with paint meter readings, service records, and detailed photos. The seller notes the hood was refinished at some point, but overall this is a well-presented, nicely documented example.

Over the last twelve months Slant Nose Coupes have averaged $240,700 with a low of $109,073 and a high of $338,208. But since that high watermark in February of this year, prices have been creeping down. I expected this one to cross the $200,000 mark, which it did, but sell closer to $250,000, which it didn’t, hammering at a final bid of $210,500. Feels like a bit of a deal even with the repaired odometer.

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