Where Eagles Dare
(1968, Richard Burton, Clint Eastwood)
The group make their escape to the airfield in a Gräf & Stift O-120 fitted with a snowplough, RP 234916, driven by Richard Burton's character:
Close inspection of the footage shows at least two buses were involved in filming. The first, pristine, vehicle is this; note the part-black radiator and the badge:
Out on the road, however, this is a different bus:
There are also two different rear views; I've brightened the first to bring out the detail: