Jeeps from the Smittybilt Every Man Challenge at King of the Hammers

Competitors are off the line at 8 a.m. and have until 6 p.m. to complete 115 miles of racing. More than 100 will start, few will finish.

Rock sections are named to intimidate: Wrecking Ball, Jackhammer, Hell's Gate. A winch is absolutely necessary.

Co-drivers are responsible for keeping the driver on track, running up to winch points and changing tires.

A good luck charm on the back of a rig.

Big tires and big shocks are necessary if you want to take the podium at the Smittybilt Every Man Challenge.

My, what a large bumper you have! With limited rear visibility and incredibly loud engines, it's often difficult for drivers to see behind them. If another driver catches them it's legal to give the slower rig a little tap, or "nerf," just to let them know they've been pulled.

Rigs carry one spare and one high-lift jack. The hope is to not have to use either. A tire change adds precious time.

Gertrude the Jeep. Wonder if it was named after the driver's grandmother?

This rig isn't racing, but it looks pretty badass and it's for sale!

Straight axles are best for getting up and over the rocks, but they can slow drivers down in the high-speed desert section.

If these rigs don't make you want a Jeep, I'm not sure what will.

You can watch the Smittybilt Every Man Challenge live today, February 4, at www.ultra4racing.com/live

These rigs have to crawl over ridiculously large rocks and perform on high-speed desert sections.