Here is a test mule for the Porsche 928, Audi 100S C1 coupe with 928 mechanical parts.V4 was in Germany until it was destroyed in a fire in 2011, wonder if any of the others surrvived?
From the book "Project 928":
V3 (Audi 100 Coupe) became the first vehicle to test the complete drive line unit in September 1973, using the platform and front section with altered wheel housings and suspension location. This car was stretched to the necessary overall width by bulging fender extensions and taken on two major African tests as well as a Mont Ventoux mountain experiment. At the beginning of 1975 it was converted to automatic gearbox.
V4 (Audi 100 Coupe) didn't receive wider fenders. Instead it was cut down the middle and widened overall by 4.3 inches. This vehicle had the entire 928 platform, the five-liter K-Jetronic engine and transaxle with manual gearbox. It was used in chassis and engine tests from July of 1974 on.
V5 (Audi 100 Coupe) corresponded in technical basics to V4 and as of the end of 1974 was used in chassis experiments, fitted with the ultimate rear axle although it did not yet have the control link, Munga was a bare chassis created in November 1973 and used for engine experiments. It was given the name of Germany's army jeep in deference to its off-road looks. This airy vehicle was really only driveable to a limited extent but testers enjoyed it tremendously around the Weissach grounds, It had a five-liter carburetor engine and transaxle with racing gearbox from the 908.03. Next came those actual 928 prototypes which carried through the test program, beginning in 1974, 928 K 1 (from January 1974) was the first of all 928...
