Incorrect Olds Vista Cruiser year

The cop said to the NJ detectives was: Its a 1976 Oldsmobile station wagon, Blue Vista Cruiser reported stolen at 3:30.So in every scene it is really a 1972 model Vista Cruiser(last year for the raised roof with windows).The crooks painted the car white because the cops are looking for the blue one and put license plates from the Oxidized Red 70s Suburban (cop said it was a 1979 even in every scene the Sub appears in it appeared to be older than 79).1976 Vista Cruisers Used the body form 1973 on have a flat roof with a pop up glass sunroof.