Weird noise

I was doing licence test IA-2 and i noticed if i pressed and released the x the engine noise of the viper actually sounded like "brum, brum"
Does anyone agree or know of another car which sounds STUPID!

 

All of them because they're all the same. There may be slight differences, but I can't hear them.

 

Hmmm... I agree, but i've never really noticed one go brum before. it sounded unique compared to rest. mind you i barely play it.