That includes the GMC AT4 sub-brand, which is available across almost the entirety of Big Red’s lineup. The question, then, is this – what does AT4 actually stand for? As it turns out ...

Showing the 2020 GMC Sierra 1500 4WD Double Cab 147" AT4 $5,065 Starting MSRP $5,065 Starting MSRP $3,355 Starting MSRP includes (PDO) AT4 Preferred Package (R3O) LT275/65R18C MT blackwall ...

The GMC Sierra EV Elevation, GMC Sierra EV AT4 and GMC Sierra EV Denali Edition 1 To recap, this is the luxurified ... which isn't a ton of time but we can make it count. Tell us: what do you ...