If it's just a lapping day track driving actually isn't that bad for your car. I find my car takes more abuse when I drive on the streets. Just take it easy and have a good set of tires and brakes.
The rear shock mounts take the most beatings for track driving.
'02 C32 AMG @ 18psi - Eurocharged custom ECU/TCU, ASP 178mm crank pulley + NW PSK, CM30 i/c pump, NW i/c iso kit, EC i/c, Magnecore wires, NW CAI, SL55 Y pipe, NW ported intake manifolds + gaskets/spacers, NW inconel exhaust manifolds, NW catch can, dual exhaust, H&R sways, H&R coilovers, H&R spacers, Quaife ATB LSD, goodridge lines, Stoptech pads, AMG 18" rims, Zeitronix datalogger.