The only issues I see are the proximity of "the hub converter" and "the people's elbow"... we'll have to becareful w/ the timing of the second car to make sure two people aren't driving towards each other through there.
Also, the finish points through the slalom, so if someone loses the brakes, they may be headed straight into the next car at the line if the starter isn't heads-up.
Other than that, I can't wait to drive it! It looks like there are lots of spots for line selection, which helps seperate the men from the boys, and lets people "color outside the lines" to better suit their car's handling.