What a fantastic autocross for you gus (for us too). It seems that you have a Navy base somewherelse to be a track. Next event you'll push yourself to the fore front for sure. So balancing of power, transmission and suspension must be the key success factors for the winner. Incrasing K number will keep front and rear wheels tracktion but at what level? How about LSD upgrading? I heard about the M535i close ratio gears excellence. The lighter curb weight comes in to play with better agility?
Anyway, Peter you've done a great job for E12 renow. Furthermore, you bring us an inspiration to set up E12 autocross soon in Thailand. Lucky on you for the next event.