What FirstV8 said.... (IIRC one Hyabusa ran mid 300's

)
As I understand the track prep this year will just be sweeping the virgin surface (no coating so hopefully less of a crust to break up) and they are going to have 3 tracks (20m wide) so they can move as the surface degrades.
Hopefully they'll run bikes and cars on seperate sections, as it is guys spinning out that really f&*k it up...
If the guys want to pussy-out I guess there's always the All-Tar event at Upington........ LOL