all vehicles; all cars
Refers to every vehicle in a given context, such as a fleet, a train, or cars on the road.
All vehicles on this line are non-smoking.
All vehicles came to a halt due to the accident.
the entire vehicle; the whole car
Used when talking about the whole of a single vehicle, such as its body, interior, or condition.
The entire vehicle was scratched.
全車を点検する必要がある。
We need to inspect the whole car.