Do I need a dedicated set of track wheels and tires?

If you run more than a couple of track days a year, yes, and a second set pays for itself. Dedicated track wheels let you mount sticky 200TW tires without chewing up your street set, keep your nice wheels off the curbing, and speed up event-day swaps. Lightweight wheels also cut unsprung weight where it helps most. Add pre-programmed TPMS sensors so the dash stays quiet when you swap sets.