Back when I was just out of High School and dinosaurs roamed the earth, there used to be events called mud flings. Not like the so-called mud racing of today where hot rodded dune-buggies skip over the water, but a deep pit of mud where highly modified 4x4's would get down & dirty. Those who made it through in the least time (or at all) won.
These things were more like monster trucks with skinnier tires than a typical lift kit 4X4, and they had oodles of horsepower.
The coolest ones tho were the ones with car bodies rather than the typical truck. I remember a 'glass deuce coupe, - a 40 something chevvy sedan and a GTO.
Best of all was a hemi orange 69 or 70 roadrunner...
Fun events to attend. When a rig got good n' stuck, the crowd got just as dirty as he did. That wouldn't happen these days...