#5-Terry Labonte and #12-Jeremy Mayfield tested more than 15 Goodyeat tire combinations Tuesday and Wednesday night at the 1.5-mile Lowes Motor Speedway. Labonte was unofficially the fastest during the test, posting a speed of 181.818mph and Mayfield ran laps in the 181.208mph range in race trim. The two drivers ran a combined 500 laps and 750 miles of testing(LMS)(3-18-2000)
