2011 GMC Yukon Hybrid a look.Several reviewers point out that the GMC Yukon Hybrid lets buyers have it all: large SUV capability and great fuel economy. "The Hybrid offers significant fuel savings versus conventional Yukon models, albeit at a stiff price premium,” explains Consumer Guide. The Yukon Hybrid starts at almost $13,000 more than the conventional Yukon. Reviewer gripes don’t stop with