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GM executive chief EV engineer says reducing cost of plug-in vehicles is 'huge priority'

As we know, another major automaker investing heavily in electrified vehicles is General Motors, and it's doing things much differently than rivals BMW, Ford or Nissan. The Chevrolet Volt extended-range EV is a modest seller at its $35,000 sticker price but a huge hit with owners. The Chevy Spark BEV, still in limited availability, puts smiley faces on its owners and drivers. The just-introduced Cadillac ELR, a sharp-looking, fun-driving $76,000 luxocoupe take on the Volt's EREV mechanicals, has admittedly low sales expectations. With this interesting trio in showrooms and much more in the works, the third vehicle electrification leader I collared for an interview at Detroit's North American International Auto Show (see #1 and #2) was Pam Fletcher, GM's executive chief engineer, Electrified Vehicles. ABG: Why do your EREVs need four-cylinder power to extend their range when BMW's i3 makes do with an optional 650 cc two-banger? "We designed [the Volt and the ELR] to go anywhere, any time" - Pam Fletcher PF: I get that question all the time: why not something smaller? You don't really need that much. You use the electric to its ability, then you just need to limp. But we designed those cars to go anywhere, any time, and we don't want their performance to be compromised. If you're driving through the mountains, we don't want you to be crawling up grades, or to be limited on any terrain. So it's optimized to be able to travel literally the biggest grades and mountain roads around the globe at posted speeds. Because what if you can't? Another good reason: when the engine is on, you have to run it wide open throttle, max speed, most of the time. And while we can do a lot with acoustics, and the ELR has active noise cancelation, a small-displacement, low cylinder-count engine at high speed, high load all the time isn't something you want to live with. That's how we came up with the balance we did among the key factors of performance, NVH [noise, vibration and harshness] and range. ABG: Where you go from here? Is the range-extender engine due for an update? PF: We know and love the current Volt, and there is still a lot of acclaim about it, so we think it's a good recipe. But we are heavily in the midst of engineering the next-generation car, which I think everyone will love and be excited about.

2016 Chevrolet Camaro powers up, slims down

Don't be fooled by its familiar appearance, the 2016 Chevrolet Camaro is vastly different than its iconic predecessors. It has a new chassis, a fresh engine lineup, and is loaded with clever technologies that promise to invigorate and improve the sixth generation of Chevy's legendary sports car. It was revealed Saturday before a crowd of enthusiastic Camaro revelers on Belle Isle in Detroit. Redesigning the sports coupe was a heady task, especially as its archrivals, the Ford Mustang and Dodge Challenger, drive better and are more powerful than ever. But the new Camaro is aiming to be the best combination of handling and raw performance, with quick acceleration and competitive fuel economy. "Redesigning the Camaro is thrilling and challenging all at once, but the secret is to offer something more," Mark Reuss, General Motors executive vice president of product development, said in a statement. It all began with a weight-loss plan. The new Camaro shed more than 200 pounds compared with the outgoing car, with 133 pounds coming from a lighter body-in-white. Then engineers culled weight nearly everywhere, using aluminum for the instrumental panel frame and some suspension components to trim as much fat as possible. The slimmer body rests on new bones. The Camaro's rear-wheel-drive platform is lighter and stiffer in a bid to improve handling. It's a modified version of the underpinnings used by the Cadillac ATS, though about 70 percent of the architecture is unique to the Camaro. Chevy said structural rigidity is improved by 28 percent. As you'll see, healthy doses of Cadillac and Corvette technologies have been used to bolster the Camaro's drive character and performance. The new car is also expected to handle better thanks to a slightly smaller footprint. It is about two inches shorter in length, with most of that due to the more compact wheelbase. It's also an inch shorter in height and an inch slimmer in width. So yes, the Camaro will be leaner, but it will still be plenty mean. The Camaro SS tops the range (for now) with the Corvette's 6.2-liter V8 pushing put 455 horsepower and 455 pound-feet of torque. Known as the LT1, is has a cast aluminum block and cast aluminum cylinder heads, and it's fortified with direct injection, variable valve timing, and cylinder deactivation. About 20 percent of the engine's parts are said to be unique to the Camaro, including the exhaust manifolds.

2016 Chevrolet Corvette Stingray Beauty-Roll

For those of you paying attention, we've really ramped up the old Autoblog video game these days. Our new series Car Club USA joins Translogic and The List, and there are more Daily Drivers and Short Cuts than ever. But sometimes, all you care about is the car. The Autoblog Beauty-Roll video series has one goal: bring you glossy video images of cars, and nothing but. We're collecting moving pictures of all the cars we test, inside and out. Each episode comes with a hit of engine sound – start-up and with a few revs – to round out the package. Set your resolution to max, kick it into full-screen, turn up the sound, and enjoy today's subject, the 2016 Chevrolet Corvette Stingray. Oh, and if you'd like more Beauty-Roll, click here to see the back catalog.