There's a new member of the 2007 GMC Sierra family released amidst the hoopla yesterday, and it's named after
the great Mastodon from the 1980s television series Gumby the highest award given in Varsity Scouting a mountain in Alaska, officially called Mount McKinley continuing the unique line of high-performance, luxury edition of GMC SUVs and trucks. This years incarnation of the luxury professional grade truck retains the Denali-specific signature chrome grille and is powered by an exclusive, 400-horsepower 6.2L V8 engine with a six-speed automatic transmission. It comes in either 2WD or all-wheel drive and big 18" polished aluminum wheels standard and even bigger 20" chromes as an option. Although lux, the Mercury Mark LT it ain't, but...at least it'll get higher gas mileage. Also no word on whether the Generall will be slating the Denali version for hybrid status. Check out our photo gallery below for more on GMC's new lux hauler.