Well, didn't realize it had a HEMI, that does change the power things
and no, I don't know squat about pace cars. But having flipped through channels and seen taxi-cabs turn left for 3 hrs before, I have noticed pace cars are usually promotional vehicles that have something to do with the race...like a Camaro or Corvette for NASCAR, or maybe a Chevy SSR or even a Chevy SS Truck for NASCAR Truck series. You know, something racing inspired for the terrain they're racing on. Picking a lifted Jeep for a dirt track pace vehicle might make some sense at best.
It would make complete sense however as a rescue/recovery vehicle in a Jeep demolition derby, We.ROCK or King of the Hammers.