High performance SUVs - yes, they’re a thing and their numbers seem to be growing. But in recent years, GM hasn’t fielded an entry. Until now - with this new Tahoe RST, available for the first time with the company’s 6.2-liter V8 and other street truck upgrades.Perhaps you remember the TrailBlazer SS, Silverado SS or SSR – hot rod Chevy trucks of recent vintage. Now it’s the RST editions that are reviving the pedigree. Short for Rally Sport Truck, the big boy Tahoe and Suburban are the first up to go RST. Remember - there’s the RST Edition which only gives you part of the street truck look and then there’s the RST Performance Package that drops in the 6.2, 10 speed Auto, and performance calibrated suspension.