Earlier this decade, pundits predicted that a gallon of gas would cost more than $5 a gallon by now. Well, they were wrong. Really wrong. And so the SUVs which were declared dead and almost buried have experienced a boon like never before. Case in point the all-new 2021 Chevy Tahoe and Suburban. Already renowned for their massive size, both have gotten bigger: the Tahoe is a whopping 6.7” longer …