2014 Chevrolet Sonic Lt on 2040-cars

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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 Spark lights up New York

The little Spark has been somewhat of a surprising entry in the modern Chevy lineup in the US. Given its diminutive stature, you might have expected the slightly larger Sonic to cannibalize the tiny sibling's sales, but that hasn't happened. The Bowtie moved 39,159 Sparks in the US in 2014, a 14.7 percent boost from the previous year. Now at the 2015 New York Auto Show, the latest generation is being unveiled with a new engine and much improved styling. Replacing the current 1.2-liter four-cylinder is an all-aluminum 1.4-liter unit making 98 horsepower. That still doesn't sound like much, but it's 16 percent more than the 2015 Spark. The new mill can be connected to either a five-speed manual or a continuously variable transmission with which Chevy estimates 40 miles per gallon highway fuel economy. The 2016 Spark also gets a longer wheelbase and 1.6-inch lower overall height. Combined with more elliptical headlights at the front, the changes make for a somewhat more sleek appearance than the current, boxy model. The platform underneath is more rigid as well, and Chevy claims the latest underpinnings mean better handling and lower NHV levels inside. The little hatch isn't growing up too much, though, and gets a trio of new colors that sound like jellybean flavors: Toasted Marshmallow, Kalamata and Splash. Chevy is packing the interior with better quality materials and improved tech. Chevy's latest seven-inch MyLink system sits in the center stack with a capacitive touchscreen, and it now comes with a physical volume control and other buttons for easier use. All models also get a rearview camera, and a LCD instrument cluster remains in front of the driver. The available suite of safety systems includes Forward Collision Alert, Lane Departure Warning and Side Blind Spot Alert. The 2016 Spark goes on sale in the US in the fourth quarter of 2015 and is produced in South Korea. Expect a gallery showing off all its new styling from the New York show floor soon.

The Chevrolet Camaro 1LE returns with V6 or V8 power

The Chevy Camaro's performance variants are legendary, and enthusiasts have long lusted after the Z/28 and ZL1. But there's a lesser-known model that shouldn't be overlooked: the 1LE. It's Camaro code for performance on the track. The 2017 Camaro 1LE debuts this week at the Chicago Auto Show and goes on sale late this year. The 1LE package will be offered for the first time on V6 Camaros, as well as the traditional V8-powered SS. The cars have upgraded suspensions, better brakes, aerodynamic treatments that create more downforce, and improved cooling features. The goal is simple: faster laps. "This is all grip and handling and cooling," said Todd Christensen, Camaro marketing manager. It's an enthusiast special, transforming your basic Camaro into a more capable track machine. The 335-horsepower V6 and 455-hp V8 are unchanged (and only come with six-speed manual gearboxes), because the focus is on improving the Camaro's reflexes. That means different things, depending on the engine choice. Here's how they break down. V6 1LE The V6's 1LE package is based on the LT trim and it pilfers the best chassis pieces from the V8 model, including the FE3 suspension with stabilizer bars. It also has a mechanical limited slip differential (3.27 ratio) and four-piston Brembo brake calipers in front. The fuel system is also borrowed from the SS, and it all rolls on 20-inch forged aluminum wheels wrapped in Goodyear Eagle F1 rubber measuring 245/40R20 in front and 275/35R20 in back. Christensen says Chevy added the 1LE pack for the V6 because customers actively wanted it, and for a reasonable price (we hear the 1LE will cost about the same as the fifth gen's $3,500 option) they can transform their V6 into a car that's as track capable as the SS. While it's giving up 120 hp, a V6 Camaro 1LE will also be more than 200 pounds lighter than the eight-cylinder 1LE. Chevy noticed the customer interest for a V6 1LE and will study offering the pack on Camaros with the turbocharged four-cylinder engine. Consider the V6 a test case. "I'm anxious to get some customer feedback [from the V6]," Christensen said. SS 1LE Even though it's heavier, the SS 1LE offers a lot of goodies that make it three seconds faster than a normal SS, according to Chevy's testing at Willow Springs Raceway in the California desert. The spotlight features in the SS are Magnetic Ride Control for the FE4 suspension and electronic-slip differential (3.73 ratio).