GMC Sierra EV: I Towed 5,600 Pounds HANDS-FREE! (Exclusive Look) video

Come take an exclusive look behind the scenes at GM’s test labs to see how the new GMC Sierra EV Denali Edition 1 was made. It’s the longest range electric truck so far, with an estimated 440 miles and it has Super Cruise, the only hands-free driving system that works while towing.