The current-generation GMC Sierra AT4 – whether in pre-refresh guise or refreshed form for the 2022 model year – offers impressive off-roading capabilities thanks to a list of rough-stuff extras and ...

The 2019 GMC Sierra AT4 is available with more power thanks to a new Off-Road Performance Package announced on Monday. Specifically, takers get 435 horsepower and 469 pound-feet of torque, which ...

Although we've driven the new , we recently had a chance to get behind the wheel of the 2019 GMC Sierra 1500 AT4 with the new Off-Road Performance Package. This 4×4 package is well-mannered on the ...

The road ahead is dirt with a rut here and a rock there. Brush keeps a respectable distance on the right side, the edge on the left gradually falls away into the valley below. The grade is nothing ...

While studying traditional news journalism in college, Jake realized he was smitten by all things automotive and wound up with an internship at Car and Driver. That led to a career writing news, ...

The AT4 is GMC’s premium off-road trim of the Sierra 1500 full-sized pickup. It distinguishes itself with unique styling details, off-road shocks and tires, a locking rear differential, and a ...

Sidd started as a freelance writer for TopSpeed back in 2017 and took up a full-time position a year later. 2,100+ articles later, he got into the editorial side of things and is now the sitewide ...