i'm heading home about an hour ago and an old beat up buick (around an 89 model) passes me with 4 guys in it. so i dont think anything of it until a little further up the highway they start to slow down and i catch up. well when i catch up they start pacing me. i look over and the driver is signaling like he wants to race. well at this point i'm trying to hold back laughter b/c i thought he was joking. so from 60 we punch it at the same time. well i hear a whine which sounded just like a cobra, only not quite as loud. he stayes with me until about 75 and i start slowly pulling away from him.
60-90 had about a car to a car and a half on him. when we slowed down he got on side of me and nodded his head, giving me the gesture of "good race". i return the gesture and he speeds away.
could this whine i heard be a supercharger?