When I was out last night in the Soop enjoying the nice weather . I have a stock motor, stock cams, 7175 on E85 at about 29psi. (dyno'd 729/659 @30psi). I was on the freeway when an E64 (convertible) M6 pulled up next to me in the fast lane and dropped some gears, winding up the V10. Of course I was down to play so I dropped down to 3rd and when I did this he jumped on it.... I followed suit. I pulled instantly to about 100 and had put about 5 car lengths or so on him the let off. He pulled back up and we went again this time I ran out 4th and pulled out far. The guy pulled back up and waved then exited. Man, they sure are sweet sounding cars even though I only heard it for a second.