Design + Plastic, or DP Motorsport, was founded in the early 1960s by Ekkehard Zimmermann and later teamed with Kremer Racing to develop a series of competition Porsches, including the 1979 24 Hours of Le Mans-winning Kremer K3. The European-spec DP 935 I conversion kit included flat-front fenders as well as a 930S-style bumper with integrated headlights.

Additional touches include front and rear spoilers, revised side skirts, dual side-view mirrors, and ducting for the oil cooler and brakes.…