My observations are a bit different. I live in a populous suburb (150k residents?) north of Denver. Truck culture is very prominent here and mainly consists of raising a vehicle and making it louder - mostly because they do want to attract attention. My 17 year old neighbor modified his Subaru so that it can (literally) be heard from miles away - and when he simply turns the car on can be heard clear across the entire neighborhood until the engine warms up and throttles down.

I'm not so much annoyed as I'm curious as to how all of this noise affects the environment at large (people's sleep quality and mood, birds migrating, insects mating etc.)