I remember in Anatomy of a Lye we saw the Mercedes that Grissom used to own, that he sold to Ecklie 5 years previously. All they said about it was that it was an S class, and in better shape when Gris owned it :lol:
I honestly can't remember any other time I saw him driving a personal car, unlike Nick, Catherine and Warrick.
Oh wait, he and Sara were sitting in a vehicle together at the end of Al la Cart discussing their interview with Ecklie and her change to swing shift. Can't remember if that was a lab or personal car......
I think it was a personal car in A La Cart
And we also saw the Mercedes in Pirates of the Third Reich
ETA: And Formalities too