What version of SLR is this? A "GT"?

[kryten22uk]

Was watching this SLR go round the mercedes mini-track at Hockenheim GP last week. Sounded awesome, and caught a little clip of it. Any ideas? Is it a GT or special racer? Sorry, the video and sound quality betrays the experience.

http://uk.youtube.com/watch?v=FK3rQIK9_BM

[Ricky_k]

looks like a SLR 722GT

one of these:
http://uk.youtube.com/watch?v=2fDVZbT3Los&NR=1

[hurstg01]

Ricky_k said:

looks like a SLR 722GT

one of these:
http://uk.youtube.com/watch?v=2fDVZbT3Los&NR=1