One scene "involves Hope stealing a bus from from a Teamsters' Outing. The other bus drivers give chase in their buses until the chase ends suddenly with Bob stopping his bus and them all running into the back. It's made in 1942 so there's some good vintage vehicles in there and good shots of them too." (thanks David Beilby) Chris Hough believes the stolen bus is an Overland, but notes that no fleetnames or radiator badges can be identified.
Certainly seen are a Fageol Safety Coach and a Yellow Coach.