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Looking back at the Citation IV concept that likely shaped the GM EV1

Those who forget history are condemned to repeat it. We're not sure how that applies to the GM EV1, but we'd still like to share something from Autoline Daily, an online automotive new show with our friend John McElroy. He's been covering the business for decades now and recently found something interesting: pictures of the 1984 Chevrolet Citation IV concept, seen above. Displayed half a decade before the first electric concept that would become the EV1 (inset), McElroy says it's now clear that the elegant, aerodynamic EV1 took a lot of styling cues from the Citation IV, which was developed in part thanks to GM's new-at-the-time Aerodynamics Laboratory. We agree with him that the spats over the rear wheels, the flush glass, and the covered headlights all bear a certain kind of similarity between the two cars. That the colors almost match is a nice coincidence. The Impact (the concept version of the EV1) looked "frumpier," McElroy says, because it wasn't as long as the Citation. You can read a lot more about the Citation IV here and check out McElroy's thoughts in the video below. Find the Citation starting at around 3:45. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Reuss says GM diesel plans are still on pace

General Motors is not going to let Volkswagen's diesel emissions scandal ruin its plans for a new line of efficient, torquey oil-burners, the company's Executive Vice President Mark Reuss said at a recent press event. "No way," Reuss responded when asked about cancelling the upcoming diesel-powered Chevrolet Cruze and other vehicles. "The Cruze Diesel is too good not to do it." Slated for 2017, the compact is just the latest member of a diesel offensive that initially kicked off with the first Cruze Diesel and most recently saw the introduction of the oil-burning Chevy Colorado and GMC Canyon. Reuss also reassured those in attendance that there was "no delay" in development of Cadillac's diesel lineup. Cadillac is working on a line of four- and six-cylinder turbodiesels for Europe. They'd make their way into the US market, too, eventually. "It's a question of timing," Reuss said, according to Car and Driver. Volkswagen's diesel emissions scandal has caused automakers across the globe to at least reanalyze their diesel strategy. Jaguar Land Rover, which is preparing several diesel-powered models for the US market, went on record late last month to reaffirm its commitment to diesel. Related Video: Featured Gallery 2014 Chevrolet Cruze Turbo Diesel: Quick Spin View 14 Photos News Source: Car and DriverImage Credit: Copyright 2015 Seyth Miersma / AOL Green Cadillac Chevrolet GM Diesel Vehicles

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