2014 Chevrolet Impala 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.

GM applies for LT5, LTX trademarks... are new small block variants coming?

Recently discovered General Motors trademark applications for LT4, LT5, LT88 and LTX have observers wondering what kind of high-performance offerings could be on their way. A new LT4 would mark a return of the engine designation first used on the Corvette Grand Sport, SLP Pontiac Firehawk and SLP Chevrolet Camaro SS from 1996 and 1997. Supposition at Corvette Forum - which provided advance intel on the C7 like these leaked images - believes a new LT4 could go into the high-performance trim of the next-gen, 2015 Camaro that would be more powerful than the 580-horsepower Camaro ZL1.
Seeing an LT5 again would also be déjà vu - in its former life it was a 5.7-liter V8 for the C4 Corvette ZR-1 from 1990-1994 designed by Lotus, producing from 370 hp to 405 hp. A mix of rumor and hope is that the new LT5 will be a supercharged evolution of the 6.2-liter LT1 (pictured) placed in the new C7 Corvette, and that it will go into the C7 version of the ZR1 pumping out something like 700 hp.
The LTX trademark is, as with that last letter, a complete mystery. If the "X" isn't a generic way to denote the whole LT family, it's wondered if it LTX could refer to a crate motor offering like the LSX.

Recharge Wrap-up: Chevy Volt's new, improved powertrain; Inabikari wants to build Tesla Model X fighter

We knew the 2016 Chevrolet Volt's new powertrain would provide more range, but we didn't know how much. According to GM's Executive Director Larry Nitz, it is about 12 percent more, overall. "I can't think of a powertrain we've re-engineered more extensively within a five-year period than this one," he said. The battery, electric drive system and gasoline generator have all been reworked to allow for an overall driving range of up to 425 miles, with electric range speculated to reach 42 miles or more. The new Volt will also benefit from 20 percent quicker low-end acceleration, weight reductions and improvements in NVH. Read more at Hybrid Cars and at the SAE website. Hyundai's FCEV research and development boss, Dr. Sae-Hoon Kim, is optimistic about the future of hydrogen mobility in Japan. With the Tucson Fuel Cell already in production ahead of Toyota's FCV, Hyundai has a foothold in the hydrogen car scene. Kim believes that since the Fukushima disaster, Japan's attitudes toward energy make it friendly to a growing hydrogen economy. He also says that hydrogen won't be limited to Hyundai, with Kia getting all the battery EVs. "Both types are for both companies," Kim says. "For the moment, volumes are small and it is not wise to have Hyundai and Kia competing." Read more at Just Auto. The Latvian/German startup Inabikari is using crowdfunding to build an electric crossover for Europe. The Rev.01 EV hopes to compete with Tesla's upcoming Model X with a range of over 400 miles and a five-second 0-60 time. The group currently is trying to raise initial funds through an Indiegogo campaign, with hopes of more investment in the future and sales beginning in 2017. See the video below, and read more at Hybrid Cars and at the Inabikari website. Fuel economy and emissions regulations could lead to some interesting design changes to automobiles. The World Light Duty Test Procedure, set to replace the New European Driving Cycle in 2017, will push automakers to find new ways to reduce drag on their vehicles. For better aerodynamics, we could see traditional side-view mirrors replaced by cameras that display what they see on screens inside the vehicle. Another likely change will be the introduction of smaller, narrower wheels. Improving the average drag coefficient from 0.32 to 0.20 could reduce CO2 emissions by as much as 20 percent. Read more at Automotive News Europe.