Set in the fictional University town of Kilminster, which is played by the city of Lincoln.
A Lincolnshire Road Car Bristol Lodekka FS5G/Eastern Coachworks passes in the street:
There's an extended scene in the bus station as McShane's character leaves by coach. Eggar's character sees him off against a background of Bristol Ks and a Bristol LS:
McShane leaves aboard Lincolnshire 2814 (RFU688), a 1958 Bristol MW6G/Eastern Coachworks, and Eggar walks away across the bus station: