I don't recall them being in a vehicle in "Patterns Of Force." I do recall them in a ground vehicle in TAS' "Jihad."
I have affection for TAS but don't consider it canon.
The car scene in "Patterns of Force" is when Kirk, Spock, Isak, and Daras arrive at the Nazi HQ building posing as documentarians. If I recall correctly, it's strongly implied that Kirk and Spock were in the car. I could be wrong; the DVD is at home.
Nope, you're not wrong. Soon as you specified the scene it came back to me. Yep, we don't actually see them riding in the car, but it is implied they were and had just gotten out.