Tire Wear at the track

[AATA]

I'm planning on taking my Elise to an upcoming track event and I was wondering how long the tires last with hard driving in approx 70 degree weather? I have 8 years track experience in other cars and plan to drive the car at the limit, but I was curious if I should bring extra tires. Obviously other conditions will apply, but your feedback would be appreciated.

Thank you!

[David Durham]

I have 4 track days, 3 auto crosses and a total of 2800 miles on my Yokohama A048's and there is about 35% left on the rears and 45 on the fronts. Apparently the biggest issue with these tires is heat. On hot days you can heat cycle them too much and they lose grip. Mine are still fine.