I was on my way out of town for a few hours today when I pulled up next to a purplelish Impala SS. It was mid 90's I think. The more powerful ones with the V8's. It looked stock to me and even sounded relatively quiet. I even turned down my music for a listen. Pretty quiet. We were rolling at about 65 on the interstate. I was by myself and this older fellow was with what I assumed was his wife. I downshifted into third and as soon as he heard my car,he bolted. Whatever he had that I didn't hear or see was quite scary because he proceeded to rock my world up to about 110. When he slowed his roll and I caught up,he gave me a thumbs up and I did the same. Damn fast car.