This vehicle is being liquidated at a wholesale value. , , The Escalade EXT represents Cadillac's first foray into the hot pickup truck marketplace. This follows the 1999 introduction of the Escalade SUV. The Escalade EXT is built on the same platform as the versatile Chevrolet Avalanche. Unique features of this luxury sport-utility truck include the Convert-a-Cab System and the PRO-TEC composite midgate and tailgate. Styling is very similar to EXTs Escalade SUV sibling. The Escalade EXT went on sale in the fall of 2001.