One of the perks of being the Commander-in-Chief is getting to ride in the back of a presidential limousine. And while certain presidents have had hand-me-down chariots, President-Elect Barack Obama is set to get a brand-new, high-tech model.

Looking much like a standard Cadillac DTS stretched to the limits, Obama's new ride is an altogether different beast, with the highest levels of protection, technology and luxury a presidential limo has ever seen. Described as "a rolling tank with windows," word is that the limo is actually not a Cadillac, but rather something built on a medium-duty truck chassis.

Spy shooters have captured the limo testing alongside a pair of GMC Topkick pickups, and keen observers have noted that the wheels and rubber appear to be dimensionally identical to those found on the big trucks (the limo sports 19.5-inch Goodyear Regional RHS tires). Bystanders even contend that a the limo sounds like its sporting a diesel engine underhood.

The exterior is an amalgamation of various Cadillac bits, with Escalade headlights flanked by Caddy's corporate grille and a set of taillights pulled from the STS. It's doubtful that all this kit -- and the massive fender flares -- will find their way onto the model bound for the White House car port, but the ultra-thick doors should provide a presidential-sized barrier between POTUS and the outside world. The only question left is whether Obama's code name (Renegade) will carry over when he moves into Pennsylvania Ave. on the 20th, or if it the Secret Service will change it to Caddyman.

Hit the jump to view a video of Obama's new ride in action.


Embedded video from CNN Video