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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.

Travis Kvapil tells Twitter his Sprint Cup car was stolen

There's a bizarre story coming out of Atlanta today, as NASCAR racer Travis Kvapil is reporting that his Sprint Cup Car was stolen from a lot at the Drury Inn in Morrow, GA. Kvapil announced the theft, which included the black pickup that was hauling the trailer and the #44 Chevrolet SS Sprint Cup Car – shown above, with driver JJ Yeley at the wheel – on Twitter. According to Kvapil, the car wasn't going to be ready for the Thursday test session at Atlanta Motor Speedway, although forecasts of snow forced the team to dispatch their main trailer and tools to the track ahead of the car, which left for Atlanta later yesterday. According to ESPN, police in Morrow have video of the "incident," which happened at 5:34 AM Friday, with police investigating it as as criminal in nature. "Sometimes what happens when thieves see trailers, they might just assume there's something in the trailer they can go off and sell," Sgt. Larry Oglesby, of the Morrow PD, told USA Today. "Sometimes when things like this occur, they will drop off the items in a parking lot somewhere – like a Walmart parking lot – once they realize what they have." "All we know is it was a silver jeep," team owner John Cohen told USA Today. "One guy got out and they pulled off together." Earlier, Cohen told ESPN that the theft will force the team out of this weekend's race at the Folds of Honor QuikTrip 500, at Atlanta Motor Speedway. Kvapil, meanwhile, has taken to Twitter to appeal to his followers to be on the lookout for the truck, trailer and race car. Here's hoping it turns up all together. Check out the driver's tweets, below. Wow. Anyone near Atlanta find my stolen Cup car let me know! Unreal - Travis Kvapil (@TravisKvapil) February 27, 2015 I bet when whoever has it, opens the trailer and is going to be like 'oh snap' - Travis Kvapil (@TravisKvapil) February 27, 2015 Ok, to clarify. @Teamxtreme44 transporter is @amsupdates. The guys stayed and worked on the car Thursday at the shop in NC. They drove.... - Travis Kvapil (@TravisKvapil) February 27, 2015 down last night in a Ford dually and enclosed trailer with racecar inside. That was stolen out of hotel parking lot this am in Morrow, GA - Travis Kvapil (@TravisKvapil) February 27, 2015 Black Ford dually, white enclosed tag behind trailer. New Jersey plates - Travis Kvapil (@TravisKvapil) February 27, 2015 Dang.... I'm wishing we had LoJack or something on it!

Watch how Corvette Racing's new collision-avoidance radar system works

When it comes to technology used in racecars, we generally expect it to trickle down to production cars, not the other way around. Well, Pratt & Miller has developed a new rear-facing radar that operates in a similar fashion to what we're used to in modern blind spot detection systems, only it is also capable of tracking cars as they approach and relaying vital information to the driver via a large display screen.
The innovative radar system debuted at last weekend's 12 Hours of Sebring for Corvette Racing, and this system makes perfect sense for endurance races like this since the cars sometimes have to drive through the night and in poor weather conditions.
The radar can detect cars even with poor visibility, and uses easy-to-distinguish symbols for the driver to identify.