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Next-gen Chevy Silverado and GMC Sierra may use carbon fiber

It's been generally accepted that the next generation of full-size GM trucks will use some sort of strong, lightweight material for the beds while retaining steel for the cab. While aluminum seems like the most obvious choice, according to Automotive News, the Chevy Silverado and GMC Sierra will incorporate both aluminum and carbon fiber in their beds. The publication cites sources from within GM, though it seems the introduction of this comparatively exotic material mix is still a few years off. While carbon fiber is both stronger and lighter than steel and aluminum, it takes significantly more time and money to produce, essentially relegating the material to small-volume cars. The main benefit for trucks is the resulting reduction in weight to improve fuel economy without sacrificing the tough, rugged capabilities truck buyers expect. The Ford F-150 made the switch to aluminum for the 2015 model year and it's proved highly successful. It seemed like it was only a matter of time before the competition followed suit. Automotive News says that the next-gen trucks will launch with aluminum beds and that it will take a couple of years before we'll see any carbon fiber incorporated into the design. Even then, only look for the composite material on higher-trim models, with a trickle down to lower-spec trucks possible further in the future. In 2011, GM announced it was working with Japan-based Teijin Limited on a carbon fiber reinforced thermoplastic. There's a good chance that material's introduction will be on trucks. Related Video: News Source: Automotive News Plants/Manufacturing Rumormill Chevrolet GM GMC Truck

General Motors Recalls Nearly 780,000 Cars To Fix Deadly Problem

General Motors is recalling nearly 780,000 compact cars in North America because the engines can shut down unexpectedly and cause crashes. The company says six people have been killed in crashes related to the problem. The recall affects Chevrolet Cobalts and Pontiac G5s from the 2005 through 2007 model years. U.S. safety regulators say the weight of the key ring and rough roads can move the ignition switch out of the run position, cutting the engine and electricity. If that happens, air bags may not work. GM says there have been 22 crashes from the problem. All happened at high speeds. Dealers will replace the ignition switch for free. GM says owners should remove nonessential items from key rings until the problem is fixed. Related Gallery Chevy Impala Earns Highest Accolades From Consumer Reports Recalls Chevrolet GM Pontiac Cobalt

Chevy confirms 2016 Camaro will have wheels, brakes

Good news, everyone! Chevrolet has issued yet another round of teaser images and information about the sixth-generation Camaro, set to debut in Detroit on May 16. This time around, Chevy's teaser images confirm that the new car will not only have wheels and tires (Goodyear Eagle F1s, no less), but brakes as well. On top of that, we now know that the new Camaro will be 28-percent stiffer than the outgoing model. "The more rigid body structure allowed the engineers to more precisely calibrate the steering and suspension systems because they didn't have to compensate for chassis flex. The lighter structure also enabled the size and mass of elements such as the wheels, tires and brakes to be scaled accordingly," GM said in a press release, which you can read below. We've already learned that the new coupe will be 200 pounds lighter than its predecessor, has a bunch of unique parts, and according to GM's Mark Reuss, will outperform the Ford Mustang in every way. Now, it's only a matter of time before we see the sixth-gen Camaro, but surely not before Chevy issues even more teasers and information. Related Video: 2016 Camaro is Stronger, Lighter and More Responsive Computer aided engineering contributes to 28 percent greater structural stiffness DETROIT – The engineering team spent 9 million hours of computational time honing the driving experience of the all-new 2016 Chevrolet Camaro before the first prototype turned a wheel. The structural modeling led to the Gen 6 Camaro being 28 percent stiffer than the current model. "The modeling abilities of computer aided engineering are advancing at incredible rates," said Jim Karlavage, Camaro program engineering manager. "Today, we can accurately model opportunities to add torsional strength without adding unnecessary mass. The result is a lighter, stiffer structure that benefits every aspect of the driving experience." The more rigid body structure allowed the engineers to more precisely calibrate the steering and suspension systems because they didn't have to compensate for chassis flex. The lighter structure also enabled the size and mass of elements such as the wheels, tires and brakes to be scaled accordingly. "The structural weight savings are compounded by opportunities to reduce un-sprung weight," said Karlavage.