Introduced in 1976 as the factory racing version of the 911 Turbo (930) and prepared for FIA Group 5 rules, Porsche’s 935 used a 3.3L twin-turbocharged flat-six engine with mechanical fuel injection producing up to 850 hp. As Porsche hesitated to sell their Evolution models, some teams developed their own ideas, especially Kremer Racing from Cologne in Germany. For 1979, Kremer introduced the 935 K3. Driven mainly by Klaus Ludwig, it won the 24 Hours of Le Mans in 1979, beating all prototypes, including the factory spec model driven by Rolf Stommelen and supported by team owner Dick Barbour and actor Paul Newman.

Of the 370 races it entered, the Porsche 935 won 123 of them. The dominance of the 935 ended with changes in the FIA rules which came into effect in 1982, replacing the six numbered groups with only three groups, namely A, B and C. Under Group 5 rules, several significant modifications were allowed, provided that the basic silhouette of the car remain unchanged when viewed from the front. This ‘flat nose’ with headlights in the front spoiler, became the distinguishing feature of the 935. The 935 also sported extended ‘long tail’ rear fenders, similar to the low-drag set-up seen years earlier on the Carrera RS.

This specific car finished 13th. in that Le Mans race and was driven by Axel Plankenhorn together with Frenchman Philippe Gurdjian and a certain Mr. ‘John Winter’. Years later it became clear that John Winter was the pseudonym of the German Louis Krages. Krages raced under a false name in fear of his rather wealthy family finding out and disinheriting him. By 1985 Krages could no longer hold his racing endeavours a secret as he won the 1985 24 Hours of Le Mans race.

During the Classic GP Assen the Porsche 935 Kremer K3 is raced by German Daniel Schrey in the Youngtimer Touring Car Challenge. It does not bear the original colours which makes the car somewhat ‘incognito’, just like ‘John Winter’..