Too much credit and not enough braincells...
I would love to pull a tyre off to show him the not for hwy service stamp on the inside of them.
Good luck with insurance oh yeah he wouldn't have any money left so he won't got any while he will be the bloke tailgating you up the road and weaving in and out of traffic.
Mass generalisation, I think so but in my experience unless he sells drugs for a living he wouldn't be able to afford them and if he's rich and not into drugs he would have better taste and would just buy a RR sport, or he's just an idiot with a credit card.
As far as each to their own, if it doesn't get driven on the road then yes fine but if it does then he's breaking the law as rims like that on a 2 1/2 tonne car are illegal and dangerous.

