Porsche 911 Turbo Flachbau

One of Porsche’s very first customers for slant nose was a wealthy businessman named Mansur Ojjeh. Among other business interests, he owned Techniques Avant-Garde, and TAG had acquired the Swiss watchmaker Heuer. Ojjeh and TAG Heuer became sponsors for Porsche’s very successful mid-1980s Formula One efforts with McLaren. Ojjeh had watched the 935 Kremers race during F1 weekends and wanted one.

Sprenger’s people, in a department named Special Wishes, created the next best thing for him since taking a full-on Group 5 racing car on the road anywhere in Europe was not possible. Starting with a Typ 930, they added 935 body parts and many other bits with an enhanced Typ 930 engine. Magazines did stories on the one-of-a-kind car and Special Wishes received many orders for either the M505 Flachbau coupe or M506 for the cabriolet.

Rolf Sprenger’s Special Wishes Department handcrafted each Flachbau to the customer’s demands. A 930 with the slanted nose for more aero (like the 935) instead of the normal 911 front end with air extraction vents and pop-up headlamps in place of the long “stovepipe fenders” and lights. Rocker panel extensions led to the rear fenders which housed the extra cooling intakes ahead of the rear wheels. Inside all the Special Wishes Turbos came equipped with luxuries like air conditioning, electrically adjustable Recaro seats, heated electrically operated outside mirrors, 6 speakers with an amplifier, power windows, and in this case an electrically operated cabriolet top. Between 1983 when the first prototypes sold and 1989, Porsche assembled a startling 948 Slant Nose coupes. In 1989, the Turbo cabriolet sold for DM 161,000 at the factory ($91,270 at the time.) The Flachbau options added another DM 77,330 ($44,390.)

Between the introduction of the Turbo Cabriolet model in mid-1987 and the end of production in summer 1989, it is hard to say exactly how many M506 examples were built, but pretty safe that in 1989 only 25 Slant Nose Cabriolets were produced. Out of those over the years, and especially in ’89, how many were PTS Slate Grey Metallic? Good question; but we’ve certainly never seen another one and not many in any paint hue surviving in such condition as chassis ending 070308.

• 1 of 25 manufactured in 1989
• Option Code M506
• One of the most popular Porsche colors of all time
• Special Interior
• Black Velour in front Trunk
• Desirable G50 5-Speed Gearbox (one year only for the 930 Turbos)
• Short Shifter
• Limited Slip Differential
• Electric Top
• Radio with CD Player
• 6 Speaker Sound System w/ Amplifier
• Original Books/Manuals
• Original Air Compressor
• Original Tool Kit and Jack