This is how cars get ruined. We get shown a neat little car then people start asking for a back seat, a trunk, some headroom, then boom - Yukon XLs for everyone.

So long as you stay on the furniture and don't touch the lava you'll be fine.

I've got a lead foot.

if you can drunkenly crash into two walls and a tree and then flee the scene on foot, you are driving a very safe car.