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GMC Sierra All Mountain

GMC Sierra All Mountain: The GMC Sierra All Mountain is based on a 2020 Sierra HD AT4, which has had its wheel replaced with tank tracks. The Sierra All Mountain retains the factory four-wheel-drive system and 6.6-liter Duramax diesel V8 engine, which produces 445 horsepower and 910 pound-feet of torque.

It was built in partnership with the city of Vail in Colorado, where a fleet of these capable machines currently performs multiple duties across the ski town.

Visit the official GMC site for more information

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