I only got two right, the Tesla and the Infiniti. I was surprised about the MazdaSpeed3 exhaust note.
Anyway, I think the definition of a car guy is someone who knows useless trivia about a number of cars, not ALL cars. There are so many cars in that list I don't care about, so why would I care what they sound/look like?
I supposed I'm a focused car guy, rather than a generalist car guy.