In an age of perpetually volatile gas prices, who in their right mind would want to purchase a very large SUV such as the 2012 GMC Yukon XL, you might ask? It’s certainly a valid question; the answer is folks who need to tow as much as a pickup truck while carrying a lot of passengers or cargo, according to Cars.com Industry Analyst Kelsey Mays. However, the Chevrolet Suburban is nearly identical and less expensive than the GMC Yukon XL.