I know Exploders aren't bad offroad, I had a lightly mod'd '91 and it did well (My highly mod'd '96 ZJ did much better though). The newer Exploders I can't say much about other than the rentals can take a beating well
2005 Ford F150 SuperCab FX4
1964 Chevrolet Impala SS
1998 CSVT: 354HP/328TQ @ 10 psi, now gone