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2016 Chevy Volt powertrain technical details

The last time General Motors launched a Chevy Volt, it was operating without really knowing how people would use the plug-in hybrid. Sure, it had experience with the EV1, but the Volt was a new kind of car, and you can see in the archives just how much time GM spent explaining this fresh, new powertrain to potential customers. Then, once the vehicle was released, the company collected voluntary data from a large number of owners to learn about their driving and charging habits. The company also asked them what they wanted most in the new version. There's got to be an algorithm buried somewhere in GM headquarters that was used to take all of the numbers GM collected and spat out the headline figures for the 2016 Volt: 50 miles of EV range and 41 miles per gallon. Another important number – price – is something GM isn't talking about yet (expect it in April or May), but the company is sharing some powertrain details about the upcoming car. At a preview lunch in Detroit last week for the SAE 2015 Hybrid & Electric Vehicles Technologies Symposium that's happening now in California, GM engineers Peter Savagian (who is presenting a paper on the new inverter used in the updated Volt) and Tim Grewe (talking about the entire second-generation powertrain) sat down with AutoblogGreen to tell us about the Volt's all-new propulsion system: The overall gist is that the new Voltec 5ET50 drive unit is lighter, smaller and more powerful thanks to a redesigned two-motor traction drive. As previously reported, the new engine is a 1.5-liter DOHC four-cylinder that offers 101-horsepower (at 5,600 RPM). Grewe said it's "great for range extension." The electric motor side of the powertrain offers 149 motoring horsepower from a two-motor, continuously variable transaxle. Initially, the new engine will be made in Mexico. GM will move production to Flint, MI during the first year it makes the 2016 Volt. The battery is slightly bigger in the new Volt – 18.4 kWh compared to 16.5 in the current-gen – and will have less range variation in the cold. GM is also using more of the overall capacity in the pack in the 2016 Volt than in previous versions, but is not saying how much more. GM is not ready to publish acceleration times just yet, but the 2016 Volt has improved numbers, especially when going from 30-60 miles per hour. Most everything on the new powertrain has become more efficient compared to the first-gen Volt.

NHTSA closes book on Ford, GM probes of 600,000 vehicles

US safety regulators have closed a pair of investigations into some 500,000 Ford Crown Victoria, Mercury Grand Marquis and Marauder sedans built between 2004 to 2007, and 100,000 Chevrolet Impala models from 2014. The Ford investigation focused on rusting heat shields, which may become dislodged and jam the steering, according to Reuters. The National Highway Traffic Safety Administration found that this happened very rarely. In fact, of the ten incidents filed with the government safety watchdog, six came from a single police department, which evidently had some sort of problem with its reporting. As for the Impala, the NHTSA investigators attributed two incidences of "unintended autonomous braking" to user error. In both cases, the vehicles were involved in rear-end collisions. According to GM investigators, it's believed that drivers accidentally activated the electric parking brake, causing the collisions. The vehicles in question were rental cars. Featured Gallery Ford Crown Victoria Related Gallery 2014 Chevrolet Impala View 10 Photos News Source: ReutersImage Credit: Ford, Chevrolet Government/Legal Chevrolet Ford Safety Sedan ford crown victoria mercury grand marquis

1956 Corvette SR-2 factory racer profiled

The Chevrolet Corvette has earned its place as America's sports car, capable of taking on the best the world can throw at it. Much of that winning reputation was earned with victories on the track. Now, there was a chance to own an early piece of the nameplate's motorsport history in the form of a 1956 Corvette SR-2 racer, but some deep pockets were necessary to get it, with an estimate of $6.885 million. The story behind the SR-2 is fascinating. In 1956, famous General Motors designer Harley Earl's son was racing in a Ferrari. Obviously, that wasn't going to work given his father's position within the automaker, and Harley and Corvette engineer Zora Arkus-Duntov got to work on a faster racecar. Three were made. This one was reportedly the first, and for 1957 it also received a fuel-injected V8 making a claimed 331 horsepower and four-speed manual gearbox, according to "Corvette Mike," the owner and seller. The SR-2 went on display in Scottsdale, AZ appropriately timed to coincide with the big Barrett-Jackson auction there that wrapped up this weekend. The car wasn't part of that event; instead marque specialist Mike Vietro sold the racer as a private treaty sale. Company spokesperson Troy Worrell told Autoblog both the bids and identities of the bidders will remain undisclosed. The video above goes into even deeper detail about this rare, finned Vette or check out the car's full description for even more info.