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GM diesel pickups first to undergo extra EPA, CARB testing

The effects of Volkswagen's long-running diesel emissions evasion are starting to spill over to other automakers, but General Motors is taking things in stride. The 2.8-liter, four-cylinder Duramax in the 2016 Chevrolet Colorado and GMC Canyon is the first engine to get extra scrutiny by the Environmental Protection Agency and the California Air Resources Board, Automotive News reports. Rather than just the usual in-lab test, it's also being checked on the road. However, the extra evaluation shouldn't have any impact on when the trucks with his mill hit dealers later this fall. "We're in our final stages of the EPA certification, and our launch is on track," Chevy spokesperson Otie McKinley tells Autoblog. The four-cylinder diesel in the trucks makes 181 horsepower and 369 pound-feet of torque, and the automaker is touting low NOx production. In the announcement for the Colorado's specs, the company calls it "the cleanest diesel truck engine ever produced by General Motors." The tech includes exhaust gas recirculation to lower combustion temperatures and improve emissions. There's also a urea tank like on the bigger diesels for full-size trucks, and it gets refilled in time with oil changes. An indication on the instrument panel lets drivers know when that's needed, too. Even with the more demanding testing, the company doesn't seem too worried about the four-cylinder passing. "Part of our development process is on-road and off-road [laboratory] testing," Scott Yackley, Chevy Trucks assistant chief engineer, said to Automotive News. In the wake of the VW scandal, the EPA has pledged more rigorous testing. Before, on-road emissions evaluations were largely limited to heavy-duty vehicles, but the agency has decided to apply the checks more often to other models. There's also now greater cooperation with Canadian authorities.

Will GMC enter the subcompact crossover segment after all?

GMC last year categorically ruled out launching a subcompact crossover positioned below the Terrain, but the decade-old rumor refuses to die. The on-again, off-again model is back on track for production, according to a recent report. Citing anonymous sources, enthusiast website GM Authority claims the soft-roader is closer than ever to receiving the proverbial green light for production. It hasn't been approved yet, so development work hasn't started. What it will look like if it receives a thumbs-up from executives is up in the air, but GMC can take several paths into this lucrative (and increasingly popular) segment of America's new-car market. Chevrolet has two fighters in the ring: the Trailblazer and the Trax. GMC could feasibly choose one, put it in a brand-specific wrapper, and call it a day. It could also design its entry from scratch, though this option would take longer and cost significantly more. Either way, the model will allegedly be called Granite or Graphyte, and it will be positioned below the Terrain in terms of size and price, meaning it would likely start above $20,000. In 2019, GMC explained it ruled out expanding its range towards the bottom to position itself as a premium brand. It wanted to focus on high-profit models, like the Sierra and the Canyon, but the crossover's ever-increasing popularity may have proven too alluring to resist. Besides, small and premium aren't mutually exclusive, and downsizing would help the brand increase its annual sales. If you're experiencing deja vu, it's likely because we've heard murmurs about a city-friendly GMC since the Granite concept (pictured) made its debut during the 2010 edition of the Detroit Auto Show. It was approved for production that year, approved again in 2011 (tentatively on a Cruze platform), and abruptly canceled in 2012. GMC hasn't commented on the report, so we'll need to be patient to find out if it's accurate — and how it would differentiate its entry-level crossover from Buick's. In the meantime, the company is putting the final touches on the electric Hummer, which will be offered as a pickup and as an SUV, and it's about to unveil the 2022 Sierra. Featured Gallery GMC Granite Concept Rumormill GMC Crossover

GMC Hummer EV coming to Extreme E with Chip Ganassi Racing

The electric off-road racing series Extreme E is getting another famous face. This time it's not a person, but rather a vehicle: the GMC Hummer EV. GMC announced that it will be the main sponsor for the Chip Ganassi Racing Extreme E team. With the sponsorship, GMC gets to tweak the Extreme E Odyssey 21 race SUV to look more like the Hummer EV pickup and SUV that starts production late this year. The changes are subtle but effective, with the nose getting a full-width light-bar motif. Of course the race SUV is vastly more rounded than the road-going truck. It also features a standardized chassis from Spark Racing and a battery pack from Williams. The team is able to provide its own electric motor, though, which the series limits to 550 horsepower. The GMC Hummer EV race SUV will make its competition debut alongside several other pedigree teams at the first Extreme E event in Saudi Arabia this April. Three teams are operated by Formula One drivers including Sir Lewis Hamilton, Nico Rosberg and Jenson Button, the latter of whom will be driving. Andretti United will also field a team, a familiar competitor to Chip Ganassi in other racing series such as IndyCar. As for drivers, two World Rally Championship champions will compete: Carlos Sainz and nine-time consecutive champion Sebastien Loeb. The series will feature five races and with the way the competition is shaping up, they should be very interesting to watch. Related video: