RJ Fabrication stretched a 1949 Willys Jeep pickup truck to create an extended cab ... There are amazing builds all over SEMA ...

Jeep® and Mopar have teamed up to create the Wrangler Red Rock Concept vehicle that will be showcased at this year's Specialty Equipment Market Association (SEMA) trade show in Las Vegas.

They're going to take it to SEMA and give it away ... additional power allows this Jeep to outperform the rest. ExtremeTerrain's Kevin Tetz, former host of "Trucks!" on the Spike Network, played ...