The ending makes no sense

So, this 'Recreational Vehicle' is EASILY stopped by a few shopping carts.

Right. Looks realistic.

Then we're supposed to believe it CAN'T be stopped by MULTIPLE cars? Actual cars.

Um.. something doesn't really make any sense here. If it's stopped as easily as shown by a chain of shopping carts, HOW can it roll over AND flatten multiple actual cars?

(Also, the awful sound effects do not match the supposed action of cars being flattened - it ABSOLUTELY wouldn't sound like that)

Does anyone here have any idea how strong and tough a CAR ENGINE is, and how hard it would be to flatten/crush it with anything less than an actual tank, that's freerolling downhill towards it?

The expectation of suspension of belief is so high here, it becomes a space traveler.

There's a reason we aren't SHOWN how it happens, because a) it absolutely couldn't happen and b) thus, there's no way to make it look believable. So it has to happen off-camera.

Heck, even in high-speed collisions with a truck, car would not look like that, it wouldn't simply 'flatten', and the RV would lose kinetic energy every time it hits something, so it couldn't just keep going.

If a shopping cart or a tiny block can completely prevent this thing from rolling, HOW would multiple cars NOT do the same?!

Nothing about this car-flattening makes any sense whatsoever, even a 'monster truck' deliberately trying to do just that, wouldn't do it as effectively, sheesh.