This video captures a Lexus IS F setting a new personal best lap time of 2:05.000 at Buttonwillow Raceway. The driver was testing new Nankang AR-1 tires and an 18-inch square wheel setup, improving from a previous best of 2:11. The car also features a Koyo Rad radiator and a transmission cooler, which performed well, keeping coolant temperatures below halfway and oil temperatures under four bars. The driver notes the AR-1 tires are performing excellently, with optimal hot pressures in the low 30s PSI.