apparently a test mule ran the track in a record 7 min 24 sec!!! Beating the current record holding production cars: Porsche 911 GT2, Porsche Carrera GT and Nissan GTR.
http://www.autoblog.com/category/lexus/ a few categories down, there is a little blurb on it.
nice little F1 inspired 4.8 V10 revving out to 9,000 rpm...sounds like a good time to me!!
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1990 Eagle Talon TSI AWD - Dead
1992 Toyota Tercel DX - Trashed
1991 Nissan Skyline GTS 4 Door RB20DET - money pit
1998 Toyota Corolla - Tires on skyline cost more than corolla