||On the occasion of the grand opening of the
Horch Museum September, 11th 2004 Audi organized a demonstration
run of their historic sports and racing cars from the 1925
NSU AVUS car to the 2004 Le Mans winner. For the first time
in history there were three generations of AUTO UNION GP cars
in one heat: Type A (1934),
Type C (1936) and Type D (1938).