Lucas Scarfone Photography

OC tests the new GMC Sierra AT4 (at the Calgary Stampede!)

Test-driving the GMC Sierra AT4

Plus a side-helping of Calgary Stampede festivities

GMC Canada recently invited a dozen writers and bloggers to test-drive the 2019 GMC Sierra AT4, and get a first glimpse of the soon-to-be released 2020 HD AT4. The backdrop for our experience was the world-famous Calgary Stampede, and the rugged foothills southwest of Calgary.

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