Is his idea that they open the side of your car door and stick a whole new tank in there?

You don’t need to put the tank in the door to do that…

You put the large rocks in the front yard, with an island and plants around them. For the driveway, if it’s a road-facing garage, your car should block that. If you don’t put the car in the garage, leaving the car ramps or blocks you use to change your oil against the garage door should be fine.

They did? What reason would you ever have for putting gas tanks in doors?

Was it like some kind of race trickery like putting fuel or boost in the frame?

You have large rocks or anything to stop this?