The GMC Envoy replaced the four-door Jimmy in 2002 and helped usher in new, bolder design cues for the rest of the brand. Although the Envoy was both bigger and more powerful than the Jimmy, the Envoy offered a more refined ride and retained its off-road capabilities. While the extended wheelbase and XUV models no longer exist, the Envoy is available in the Denali luxury trim line. The GMC Envoy comes with a five-year/100,000-mile powertrain and gets an estimated 19-20 mpg on the highway.