cars hans heyer touring belgium other races francorchamps spa 1971 24h amg benz mercedes pits pitstop hi res a4 ford prototype sports france front le mans germany 1973 a3 blur capri mechanics speed 1 formula hockenheim light refuel side track two 1972 1974 1977 6h ats emblem engine many nuerburgring penske zoom 1978 1980 1981 a1 advertising bmw celebrating clemens drm fans fighting ghinzani guenter herzog kranefuss lancia martini mike patrese piercarlo pit pitlane podium porsche portrait rear rene riccardo schickentanz schmid sponsors stop sunglasses technical three tools tyres zolder