Hey, weirder things have happened. Way weirder things.

Uh, well, there are a lot of different shapes. At the very simplest it's like a rectangle. With wheels. It's usually made out of metal. You said you had vans, right? Imagine those but smaller.

They have an internal combustion engine, I guess. My friend would probably know a lot more about that. He had this car, right, and it was totally run down but he managed to keep it running somehow. He probably knows way more about how they work than I do.