We've seen . Even when the climb doesn't end as planned, these little monsters can take a tumble and preserve their passenger. I think driver Bobby Tanner here owes his roll cage fabricator a gift basket after surviving this insanity.

Tanner had some trouble keeping his wheels on the ground all weekend at the .

The Unlimited Off-Road American Show & Expo is going down June 21st & 22nd at the Kentucky…

Here he is tumbling again on a "flatter" course (rollover and recovery about 0:55 in):