There have been some memorable special editions of the Porsche 911 through the decades and one of them is the Slantnose or Flatnose version of the 930-generation 911. Porsche produced under 1,000 examples of the Flachbau, as it was known, and a mere 160 of them made it to the US. It's one of 40 Porsches that will be restored by Porsche Classic following an announcement made in April and looks rather good in convertible form too. With its unique aesthetics and improved aerodynamics, the 930 Turbo Slantnose is a rare and desirable sports car and a special one-of-one custom example is going up for auction.

Listed on Mecum, this 1987 example in Guards Red is the only one of its kind. It's said to have been built by Porsche's Special Wishes program and features BBS wheels, a locking differential, a rare factory power kit, and just 46,000 miles on the clock. It looks markedly different from the regular 930 with its smooth, slanted hood and pop-up headlights, a feature that was much more popular in the 1980s. The 3.3-liter engine is paired with a four-speed manual gearbox and is said to produce over 300 horsepower thanks to the power kit. Inside, there is a Champagne leather interior and a dashboard with old-school wood inserts.

The sliding ventilation controls and Sony cassette deck are reminiscent of the period. However, it still comes with heated front seats and a sports steering wheel, along with power-adjustable seat controls for the driver's seat. The center console houses additional gauges and there is a LED boost gauge. The listing says that this car is a multiple award winner and is authenticated by Porsche. With almost every generation of the 911 defined by its rounded, prominent headlamps, this Slantnose version is something truly unique. It's also in phenomenal condition so is bound to fetch a considerable sum when it goes up for auction later this month. We've seen less rare models go for more than a half million.