Thanks to our spy photographers in Colorado, we now know that the GMC Sierra is en-route to getting a new diesel engine for the 2019 model year.
The photos reveal the underbody of the prototype vehicle with what is most likely a tank for the exhaust after-treatment fluid and a diesel particulate filter. These are necessary components for any new-age diesel motor. Although the exact capacity of this power-plant hasn’t been revealed, sources suggest that it could turn out to be a reworked version of the 2.8-litre four-cylinder motor seen in the Chevy Colorado. But there’s also talk about it getting the 3.0-litre inline six from the Navistar.
As you can see, the next-gen GMC Sierra will feature better aerodynamics. Although this prototype is heavily cladded, reports state that it promises a new grille with a mix of horizontal and vertical slats. This iteration will also use significantly more aluminium in its construction, along with a steel floor.
GM is expected to build the next-gen Sierra at their production plant in Michigan. Sources also add that the car may debut in the last quarter of 2018, so stay tuned for the details.
