Body sheet metal is a great way to cut tires!
A buddy of mine in college "crushed" his Monza (?) with his Chevy Pickup with 40's. He managed to get the front tire on the roof with the other three on the ground. He ended up cutting one of his sidewalls in the process. It is great fun, but maybe not worth the risk.
i agree with sidewall tears being bad, however, i have less to worry about for two reasons, my tires have an 8 ply sidewall, so cutting is real hard, also, i work at less schwab, so i can find warrenty loopholes that others couldnt.
noetheless--i only drove on rounded portions of the truck, like the frnders and hood and a pillar