Maybe their super strength doesn’t apply to cardio stamina and they can still get fit by running really fast or something.

paru

No, it’s almost certainly not legal. However it’s plausible that he just registers it as one of the 2 destroyed cars. It’s still “a prius” and could probably slide under the radar.

There are companies that do this legally for limmos. I don’t know how easy it is for “some guy with some tools” to do it legally.