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Barrett-Jackson rundown: 2024 GMC Hummer EV, Colin Powell's Corvette and more

The echoes of the last hammer fall at Barrett-Jackson's Scottsdale Auction have disappeared into the Arizona night, as have the record crowds and the traffic jams. During the Super Saturday charity auctions, three main attractions drove onto the dais for bidding: Late U.S. Chairman of the Joint Chiefs of Staff and Secretary of State General Colin Powell’s 2015 Chevrolet Corvette Stingray, the hammer price benefitting AmericaÂ’s Promise Alliance, the nonprofit Powell founded to support kids; The first production 2024 GMC Hummer EV SUV Edition 1 with VIN 001, proceeds going to Tread Lightly!, which educates people on how to enjoy the outdoors in a motorized vehicle and simultaneously protect the outdoors; And the first production 2024 Ford Mustang GT Fastback VIN 001, its hammer price benefiting the Juvenile Diabetes Research Foundation. Before the Saturday showcase, charity auctions on Friday took Barrett-Jackson past a huge milestone. When an 800-horsepower 2021 Shelby Super Snake Count's Kustoms Edition hammered for $350,000 to support the veteran's charity Camp Freedom, the auction house officially surpassed the $150 million mark for charity auction proceeds. Piling on before the clock struck midnight, a 2023 Ford F-150 Lightning 4x4 Super Crew sold for $275,000, those funds donated to Fighter Country Foundation. Then came Saturday. Powell's Gunmetal Gray on black Stingray was said to be a daily driver, but with just 15,600 miles on the odometer, Powell — who died in 2021 — apparently had a very short commute. Equipped with an eight-speed automatic transmission and chrome wheels, it sold for $200,000. The first production 2024 GMC Hummer EV SUV Edition 1 ran the bidding up to $500,000. That's quite a ways down on the $2,500,000 that the bedded 2022 GMC Hummer EV Edition 1 garnered at the charity auction in 2021, and not a bad price all things considered. The owner gets the first one off the line instead of getting lost in the 90,000-order backlog, and the markup goes to a good cause instead of a flipper and eBay fees. The first production 2024 Mustang GT Fastback brought in both less and more than the Hummer EV. The Ford's hammer price came to $490,000. However, two additional philanthropic donations for this lot in the amounts of $50,000 and $25,000 took the final price to $565,000. The big movers on the day were outside the charity sphere, four cars breaking the million-dollar mark.

Leak reveals GM's 2017 heavy duty diesel trucks to get 910 lb-ft of torque [UPDATE]

UPDATE: Chevrolet officially announced specs for the 2017 Silverado HD and the rumors were true. The truck's new Duramax 6.6-liter turbo-diesel V8 puts out 445 horsepower and 910 pound-feet of torque. Chevrolet says the new motor produces 19 percent more torque and 12 percent more horsepower, while producing 35 percent fewer emissions. Overall, the new engine is a big improvement over the current motor, which generates 397 horsepower and 765 pound-feet of torque. According to Truck Trend, GM's newest heavy duty pickup trucks will pick up quite a bit more power and torque. The publication spotted a recent GM Powertrain ordering catalog that had the engine specs for the 2017 model year and managed to get some screenshots before the catalog was taken down, and they can be viewed here. The screenshots revealed that the 6.6-liter turbodiesel V8 powering the Silverado and Sierra heavy duty models will boast 445 horsepower and 910 lb-ft of torque. This is a substantial gain over the current models' 397 horsepower and 765 lb-ft of torque, and as Truck Trend points out, it exceeds the Ford Super Duty line's horsepower output of 440, but comes short of the 925 lb-ft rating. Truck Trend credits part of this output gain to the new intake system GM will introduce on the 2017 heavy duties. The intake gets 60 percent of its air from a scoop on the hood, with the other 40 percent coming from behind one of the front fenders. GM doesn't reveal horsepower figures in the press release about the scoop, but it does say the cooler air helps with maintaining the engine's output, and that the scoop does produce a ram-air affect, providing more air at speed. As we know, more air plus more fuel equals more power, but there's likely more to the power increase in this engine than only the intake. Related Video: News Source: Truck Trend via MSN Chevrolet GM GMC Truck Diesel Vehicles

2019 GMC Sierra 1500 pickup teased on Twitter

GM's half-ton pickup line will be fully rounded up later this week when the new GMC Sierra 1500 is revealed. Though the unveiling is on March 1, GMC has provided a teaser of the new truck ahead of time on Twitter. It shows only the front fascia, but considering the Sierra's history of simply being a badge-engineered Silverado, it's arguably the most important angle of the truck. The teaser confirms a few things we were expecting based on past spy shots. The headlights look much more conventional than the Silverado's rather small units. The Sierra's grille, unlike the Silverado's, will also rise above the tops of the headlights, providing more of a big-rig appearance. We also finally get to see the GMC badge on the front of the Sierra, and it looks like it's an enormous rendition. As for the rest of the truck, previous spy shots have shown the Sierra will have other subtle styling changes from the Silverado. The wheel wells are shaped differently, and the taillights will be unique to the GMC. The interior of the new Sierra will look almost identical to that of the Silverado, with the exception of a few minor trim details. We also expect the Sierra to use the same engine lineup as the Chevy's, which at this point we know will consist of a 3.0-liter turbocharged diesel inline-six, and naturally aspirated 5.3- and 6.2-liter V8s. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.