Streets of Willow should be OK with small, low powered cars? It's very twisty but enables multiple lines through the sequences. However, if anyone gets tapped off by a mistake they will be dirt tracking 10-30 seconds to get back on. Not as bad as the high speed off-camber kitty litter of the big track. If the R390 is allowed as a 630pp GT car then the TS020 would be as well. I would probably have left for the Toyota 2000GT series by then, though.