It gave me a sound education in the art of acceleration (and fabulous noise!!)... left me for dead despite my best efforts!! It looked and sounded lovely...
Wound the window down whilst alongside at some lights after a short play to see a baseball cap, big grin and the question "Could you keep up?". Not a chance!!
All was revealed when I asked why and was told, "Its producing 716 bhp at the moment"

Didn't ask the driver if he was on here, but I am curious... there can't be many 700+ bhp C6 RS6s around...