"Motor" is quite widely used instead of car, though perhaps mainly by mockneys or ironic mockneys. (No, that's not a band.)

Is it still colloquial in the US to "ride" in a car, or on a train, or just "ride" a train or subway? What about Canada? In the UK you "ride" a bike or horse, but never anything you actually get inside. You don't even get a "ride with" someone in a car, you get a "lift" with them.

Peter