Sorry I can't help you with "where". But I can tell you that you have the right idea for smoking those other dudes. Tweak the alignment on the Viper so it turns better, and look out M3 / 911. Evens up the playing field a little. Those cars handle great, but they don't have the Viper's insane torque. I've done autoX before, but not in the Viper. It seems that if you can keep your driving clean, the only thing you'll have trouble with, are the all-wheel drive cars.