Last night was cruisng along my private test track and two M5's rip past me. One had a modified exhaust system and sounded awesome at full chat. They where side by side at the next set of light so i got the missus to film it on my phone.

http://smg.photobucket.com/albums/v6...t=MOV00637.flv


The noise was unbelieveble , they got caught at the next set of lights and then an AMG 63 pulls up next to me the driver as a massive smile on his face and blips the throttle. The sound was so deep and raw and much louder than the M5's. Light go green and they all rip off in to the distance leaving me for dead and in awe of the noise of all three at full throttle.