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Many configuration possibilities; high towing capacity; optional dual-rear wheel setup; available luxury options
The GMC Sierra HD gets a full redesign for 2015, with brand new, more mature exterior styling and an intuitive interior. GMC has done its best to increase connectivity in the new GMC Sierra HD and the new truck is packed full of modern amenities. The upscale Denali version in particular, stands apart from other trucks on the market, with its luxurious cabin and swanky looking exterior.