Not precisely. We have carriages and wagons as well. Cars are a somewhat newer invention though. It's a simplistic description but rather than horses they use engines.

[She holds out her hands here mimicking the grasp of a steering wheel.]

They have a wheel to steer with and pedals you use to make them move.

[She pauses there, considers and then gestures a little.]

You can think of a tank as ... an armoured carriage perhaps?

[Hm, maybe? She huffs a little.]

I don't suppose I could somehow give you a mental image of any of those? Communion is very nice for showing off weaponry.

[She's come to appreciate it for at least that much.]