@ZAK65 have you read my PM yet
?
These are seriously brilliant photos by the way! This proves their were 4 Zakspeed Escort Gp5s! I was still thinking that one might have been liveried differently for various drivers throughout the season.
That means the Ringshausen car must still be somewhere. By the way you can notice it was an early car if you look at the rear wing, it's different than on later escorts, aero package is different as well in some details. I still haven't heard anything from Ringshausen, perhaps I should pay them a visit when I'm in germany.
The Ringshausen pic I posted was from 1978, which would explain the different number.