GMC extends 8-speed auto to workhorse 5.3-liter V8s for 2016 Sierra
For 2016, fine-tuning is the name of the game, with GMC adding safety features and bling on the outside, while inside, the latest Apple and Android smart phones will be able to drive the Sierra's infotainment system. In our book, though, some of the biggest news is hidden under the sheet metal: GM's eight-speed automatic transmission will be standard on SLT and Denali models with the 5.3-liter V8. For 2016, the available Driver alert package, which gives audible and haptic warnings when following too closely or straying out of marked lanes... Читать дальше...