Porsche’s iconic flat-twelve-powered 917 protype won the 24 Hours of Le Mans ... of aerodynamic ground effect, and a full-width rear wing was added. Unfortunately the wing added a lot more ...

Jerry Seinfeld turned down the high bid at auction for his Porsche 917, but he now confirms it has been sold for roughly the same amount.

Other highlights are the car's fully variable aerodynamics, adaptive rear axle steering and "top ... As early as 1971, a Porsche 917 finished first in the legendary endurance race in Le Mans ...

Power is sent to the rear wheels through a four-speed manual transmission. The Porsche 917K Chassis No. 917-022 is scheduled to cross the Mecum Auctions’ auction block on January 18 th in ...