Safety tips for the road course:
1. Brake in a straight line.
2. Accelerate in a straight line.
4. Late apex the tighter corners.
These are pretty good basic rules for someone starting out. More experienced drivers who know their cars thresholds can break these rules and get around the track faster, but if you stick to these you almost can't get into trouble. Most cars including the viper only do one thing at a time well ... accelerating, braking and cornering. Start combining these and their individual envelopes shrink. Only experience will tell you how much, so keep it a single variable equation the first few times out.
Also smoothness on the transitions to and from these different states. Smooth onto the throttle is VERY important in the viper. 500 ft.-lb. of torque mashed WOT in anything less than a perfectly straight attitude spells spin. Brake HARD ... harder than you've ever been used to braking on the street but don't spike the brakes. Smooth quick transition on then hard to the threshold. Smooth steering transition into and out of corners so as to not upset the car's balance.
Late apexing corners ensures that you won't run out of track at the track out point, which would mean that you'd be agricultural in a cornering attitude, hence spin. The only way you screw up a late apex is by running out of track under braking and that's not so bad ... you just run off straight and no real harm's done (hopefully there ain't a wall at the end of the straight section)
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Oh, and one more thing ... if you do go off track don't try to save it and come back on. Stay off track and out of traffic, drive straight and slow to a stop. The worst wreck I've ever seen (totaled viper) was when a guy tried to save it, came spinning back across the track and spun backwards into the armco on the inside.
Keep it sane and you're gonna have a blast ... most fun you've ever had with your clothes on!