Jaguar XJ6 Series 2. This is the car Harold Shand (Bob Hoskins) is driven around in for most of the film, so 4 Stars.
Rolls Royce Silver Shadow. Harold Shand's private car, gets blown up early in the film (which is a key plot point). 4 Stars
BMW E3. 3 Stars
Leyland Princess. It is glimpsed in few scenes with one of the key supporting characters, it is obviously his, though it is not that noticable. 2/3 Stars
Police Range Rover (First Generation) 1 Star
Renault 5 (first generation) 2 Stars
Mercedes SL (W113) 3 Stars
Mercedes 230 (W114/5) Hearse 2 Stars
Ford Granada GL Mk I. 2 Stars
Ford Cortina Mk IV 2.0 GL 2 Stars
Unknown 2 Stars
Volvo 245 DL. 2 Stars
Unknown. Character is seen working on it, so 2 stars