Despite all of the news about shrinking sales of large SUVs, this segment is still expected to move between 700-800,000 units annually, with General Motors reportedly grabbing 62 percent of that pie. Gas prices may continue to be volatile, but the fact remains that thousands of affluent American buyers choose to go about their business, be it a family trip to Tahoe or a run to the convenience store, in luxurious style. Competition in this upscale segment is increasingly fierce, yet few players can rival the 2007 Cadillac Escalade ESV’s enormous appetite for cargo.