2013 4wd Crew Cab 153.7 Denali 6.6l Auto Gray on 2040-cars

Auto blog

Supercharged 2015 GMC Yukon Denali sounds evil, runs 0-60 in 4.5 seconds

Speeding along in a sports car is undoubtedly a ton of fun, but some owners need the ability to carry a lot of people and their stuff and don't want to sacrifice the ability to put the power down. The tuners over at Hennessey have that demographic covered with their growling, supercharged power kits for the GMC Yukon Denali. The upgrades come in three forms for the SUV's 6.2-liter V8: HPE550 with 557 horsepower, HPE600 with 605 hp and HPE650 with 665 hp. This video showcases the full-bore version, and this Denali can definitely hustle in a straight line. The power bump comes courtesy of a 2.9-liter supercharger, intercooler and high-flow cylinder heads to add over 200 horsepower compared to stock, and the final result is a bellowing SUV that rears up off he line to throw the driver back into the seat. The sprint to 60 miles per hour lasts just 4.5 seconds. Check out this hasty hauler in action in the video above.

Leaked GM document shows GMC Sierra I6 diesel is more powerful than F-150's

GM told us earlier this year that the 2019 GMC Sierra would be getting a 3.0-liter I6 diesel option, but it never mentioned power or fuel economy figures. Hold the phone though, because a leaked GM Canada document just showed up online that lists out the details we've been waiting for. Originally published by TFL Truck, the 3.0-liter oil-burner supposedly makes 282 horsepower and 450 pound-feet of torque. For those who are counting, that's more than the Ford F-150's 250 horsepower and 440 pound-feet from its 3.0-liter diesel. It soundly bests the 240 horsepower and 420 pound-feet of torque from Ram's 3.0-liter diesel as well. Fuel economy is another story, though. The promotional material states that it will get 28 mpg on the highway, which is 2 mpg short of the F-150's 30 mpg — mind you, it's only capable of that magical 30 mpg figure in rear-wheel drive form. There's another caveat here, too; these are numbers for Canada, so they're not exactly finalized EPA figures. However, we wouldn't expect drastic differences between the two when the American numbers come out. The leaked documents also state the diesel Sierra will be capable of towing 7,800 pounds. That number seems remarkably low when compared to the F-150, which can tow up to 11,400 pounds with its diesel. Extra power and torque would have us assume that GM could get even better numbers than Ford, so we're going to hold our final judgment for official word. A 10-speed automatic will do the shifting on the diesel, just like on the 6.2-liter V8. Since the Chevy Silverado is also expected to get this engine, we can assume the figures would be almost, if not identical, to those we see here. We recently drove the 2019 Sierra and Silverado without the diesel engines, so go check those reviews out if you'd like to know more of our thoughts on the redesigned GM trucks. Related video:

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: