He drove a Buick Century with a 455 engine in it. Not because the NYPD issued these cars to the detectives. It was more the car companies supplying the cars for product placement on TV shows.
Diefenbaker pulled Fraser out of Prince Rupert Sound, saving the Mountie's life, but also bursting the wolf's eardrums - which resulted in, according to Fraser, Diefenbaker's deafness.
In the episode where Captain Kirk was battling the Gorn captain. An improperly rigged explosion in this episode caused lifelong hearing damage and tinnitus for both William Shatner and Leonard Nimoy.