Seriously, what the hell do you care?
Sure, perhaps he's a bit annoying because he is really proud of a modest car, but guess what....he's a car enthusiast, just like you and me!
If you are going to get pissed off at every person who shows excessive pride in a slow car with some whiz-bang cosmetic add ons and no muffler, you would never be able to drive anywhere.
Seriously, he is no worse than about a million rice jockeys out there.