Porsche’s Racing Department never officially entered or prepared a racing 928 for a pure works entry. Only once Porsche decided to make it obvious to the 911 enthusiasts that they usually tended to underrate the racing genes of the 928. Porsche then “arranged” this 928GTR to compete against the then dominant 911(993GTR) on the race track. In order not to offend sensibilities of their traditional 911/993GTR customers by officially challenging them with an outright Works – 928GTR, Porsche asked Max Moritz Racing, their longtime private racing partner from next door Reutlingen to enter this 928GTR Cup as a ‘semi-works’ car.
It didn’t come as a surprise that the drivers were: Bernd Mayländer, Manuel Reuter (Porsche works pilots), also Harm Lagaay (then Head of Porsche’s Design Studio). Vittorio Strosek sponsored MM with his Lightweight-Body-Parts and racing exhaust. The car was officially entered by Porsche-Club-Schwaben. Homologation minimum weight had to be, and actually is 1,370 kg (3,000 lb).
Lagaaij reports that the car was very competitive and able to hold most 964 CUP GTs down, although the engine was no more than fine-tuned after having been chosen from a set of high power output specimen in Weissach. In the last race of the season at Hockenheim a crank-bearing ran dry. As the car was supposed to race in 1995 as well, she was made ready to continue her successful competition in the 1995 season. A fresh engine was installed, selected from the same lot of high output engines and tuned as before. In 1995 Porsche’s 928 production came to an end, and the car consequently was not raced in the new season.
The late Max Moritz himself then had her join his collection of historic cars. She was not put on the road again until after his death, when the family sold the car in October 2004 – with only 24500 km on the clock (Porsche-Weissach is the only documented owner).