The GMC Yukon XL is the largest SUV model from General Motors' truck specialists. It shares its chassis and basic body elements with the 
Chevrolet Suburban, but comes with a more upscale feel that makes it something like a more affordable, less-showy 
Cadillac Escalade. There's lots of room for people in three rows, plus useful cargo space even when all the seats are occupied. Count on strong performance thanks to a pickup-based platform.