This 935 Porsche was built by Kremer Racing (who built the Chassis engine gearbox and suspension) and DP Motorsport (who made and painted the bodywork) in Cologne in the late 1970s. Incidentally DP Motorsports built and fitted all the bodywork for the Kremer Brother 935s including the K2 through to the K4. Exkerhard Zimmerman of DP Motorsports developed this style of 935 bodywork after his enormously successful K3 design for the Kremer Brothers. Built up for a Mr. Peter Postern and then sold to Jurgen Schorn it ran races in Germany. Before it was sold the well known German racer Jurgen Opperman. He and his partner Otto Altenbach then raced the car many times particularly at the Old Nurburgring in the 1980s. Here you can see the car in action and overtaking Franz Konrad 935!In 1989 Opperman and Altenbach won the Veedol Championship in Germany which consisted of several long distance races (Langtreckenrennen) over old Nurburgring.In 1990 this 935 was sold to Willi Rabl an Austrian driver from Vienna who was a long time customer of the Kremer Brothers racing team. All of Willi race cars were sponsored by Vaillent Air Conditioning Co. with their characteristic green and multi-colored striping color scheme. Willi was a specialist in the long hillclimbs (mountain races) that are such a distinctive part of the European racing scene. Willi Rable won two European hillclimb championships with this car. To accomplish this Willi Rable had Kremer Racing remove the 3.4L twin-plug engine that was in the car at that time and installed an IMSA spec twin turbocharged 3.0L twin-plug engine complete with a flat fan producing 806HP. This was a very special engine built up by Porsche Morotsports at the factory and supervised by Gerd Schmidt. It is exceptionally powerful though tractable in the manner of Porsche turbocharged flat-six. Willi Rabl kept the 935DP in his stable for fifteen years before selling it to the present owner.Since acquisition this 935DP has benefitted from a thorough mechanical preparation and a repaint in it original Vaillant color scheme