Market Find: 1 of 1 Porsche 959 ‘Speedster’ Heads to RM Sotheby’s Milan Sale

What: 1989 Porsche 959 ‘Speedster’
Color: Porsche Grand Prix White (grandprixweiß; non-metallic Uni; 908 / P5 / 9A5; Porsche)
VIN: WP0ZZZ95ZHS900142
Mileage: 8,304 km, 5,160 miles
Price Estimate: €1,100,000 – €1,500,000 EUR 
CarFax: N/A
Location: RM Sotheby’s Milan Sale, May 22, 2025
Auction listing: Link

Imagine, in period, being one of the few who can afford and even attain a car as exclusive as the Porsche 959. Now, imagine you take said 959 and have it converted to a roadster. Well, it happened, and that fascinating car is headed to RM Sotheby’s upcoming Milan sale.

The conversion was performed by Karl-Heinz Feustel in 1989 to a car reportedly sold new to Jürgen Lässig, a racecar driver with a 24 Hours of Daytona victory under his belt along with a runner-up at the 24 Hours of Le Mans.

Upon completion, the 959 was displayed at the 1989 Essen Motor Show. Think of it as Germany’s SEMA (but with some public and press days thrown in) and you’ve got the idea. No doubt the car, built in Grand Prix White with blue interior and matching soft top, left an impression amongst those who came out for the show.

The car’s called a ‘Speedster’ and perhaps that applies. The painted A-pillar and windshield frame appear to be more 911 Cabriolet than Speedster, but it’s still incredibly unique. The exclusivity of the configuration goes up even further when you consider that the car came with a color-matched removable hardtop in a transport case, a tonneau top and spare ‘Speedster’ windscreen that makes one wonder if the conversion utilized a windshield incompatible with either the 911 Cabriolet or the Speedster of its time.

Whatever the case, it’s a very special car, one you can find more information on via the RM Sotheby’s link above.