You've probably heard or perhaps even uttered the uniquely American phrase go big or go home. That's right. We like our 85" flat screens and 72oz. steaks. And when it comes to our SUVs we prefer they come in XL and Denali. Welcome to the all-new, nearly 19' long GMC Yukon. At 224.3”, the Yukon XL along with its GM counterparts is the longest passenger vehicle you can buy. This …