Why is this his wife's car and not his? He has his own fancier Tesla, you would think that they would swap so she has the better car. The yellow colour is just

Why is this his wife's car and not his? He has his own fancier Tesla, you would think that they would swap so she has the better car. The yellow colour is just a wrap, he could have had things cosmetically correct for her by wrapping his P95(D). Plus she would not have been off the road waiting for the homebrew modifications to happen. I am okay with people modifying their cars, in fact I like to go to the race tracks where people go at actually ludicrous speeds in their modified cars, repairing them between races. But it is a different thing modifying a car for someone else in an experimental way. On a track where the driver is a 'racing driver' is one thing but, on the highway when the driver is a 'civilian', well, that is something else. A small rattle means something to the guy who built it and knows what that rattle can be from, another 'civilian' driver won't necessarily know the problem space.