First time on the 5 miles configuration, and on a sweltering day too with 110F highs.
Both the car and driver suffered from the heat, only really the first session was usable for setting new personal bests.

2006 BMW Z4 3.0si roadster E85
Hankook RS-4 (6th track day, very worn at this point)
-2.5F/-2.2R camber with Vorshlag camber plates, -0.05F/0.10R toe
Wavetrac LSD and 3.64 diff gearing
Koni yellow shocks (rebound 3/4F, 1R), stock springs
Pagid RSL 29 pads
H&R swaybars