Cup cars to shed weight in 2013

Below is the vehicle configuration required by NASCAR and Goodyear for the October 9-10, 2012 tire test at Texas Motor Speedway:

Approved 2013 OEM body

Reduced minimum vehicle weight by 160 lbs. (-60 lbs. LS , -100 lbs. RS) from 2012 rules

Revised minimum weights:
Total = 3, 290 lbs.
LS = 1,690 lbs.
RS = 1600 lbs.

4.75 inch x 53 inch rear spoiler

Revised front splitter (notched)

No aerodynamic radiator pan

Non-skewed rear axle (rear toe-in: One side = 0.0 degrees, One side = 0.125 inch max)

Rear axle camber up to maximum of 4 degrees