I honestly don't care about the car noise. Speeding down my street is my bigger concern. Neighbors complaining are the same one's out with their snow blower going at 4am or sawing down a tree at 6am. I don't complain. I work an off shift and just because my hours don't align with theirs doesn't make it right. Suck it up is what I say. If you want a quieter neighborhood move somewhere a half mile off the road.
I remember staying at my Granmdas house at times in Pittsburgh and she lived next to the police station. I guess she should've sent them a note when they turned on their sirens.
Someone sitting in the driveway revving the engine is one thing, but if the person starts the car and leaves or comes home and turns it off it isn't that big of a deal.