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2014 Chevy Silverado High Country spied wearing trappings of new luxury trim

Spy photographers have spotted the new Chevrolet Silverado High Country and GMC Sierra Denali out on public streets for a little testing. From the looks of things, the Silverado will receive a much-differentiated front fascia along with special badges and those honking 20-inch chrome wheels. Expect to find a more posh interior as well. Likewise, the Sierra Denali will wear a tweaked nose with the familiar Denali bling. The one of the GMC trucks spotted here rolls on 21-inch gunmetal wheels instead of the 20-inch chrome pieces of the High Country.
Word has it both trucks will go on sale after the Texas State Fair this summer. While General Motors hasn't said for certain what we can expect to find under the hood, we'd be surprised to see anything outside of the range of engines found in the standard Silverado and Sierra models. That means buyers should be able to get their hands on the efficient, 23-miles per gallon 5.3-liter V8.

Recharge Wrap-up: EV torque secrets, UC Davis maps future of biofuels

A UC Davis white paper maps out "Three Routes Forward for Biofuels," balancing investment risk with carbon benefits. The first option is "incremental," in which we tinker with the existing biofuel manufacturing infrastructure for small improvements over time. The "transitional" plan suggests integrating cellulosic production and other innovations with existing operations. The third route, called "leapfrogging," would mean building refineries based on new technology such as cellulosic and algae-based biofuels. The paper suggests ways the US could use these three routes together in different areas, and predicts the payoffs in terms of carbon emissions could be significant if the right people are willing to risk the capital. After all, financial advisers are always telling investors to diversify their portfolios to manage risk and rewards in the same way. Read more over at the UC Davis Institute of Transportation Studies. The Formula E Long Beach ePrix will offer free admission. The seventh round of the inaugural all-electric race season, which was moved from Los Angeles to the streets of Long Beach, will offer fans free grandstand and general admission. The race, which takes place on April 5, 2015, will use a 1.6-mile portion of IndyCar's Grand Prix of Long Beach. Read more at LA Times. Polaris is now offering its 2015 GEM electric vehicles, including the new street-legal eM1400 LSV. The passenger and utility vehicles come in two- to six-passenger configurations, many of which are street legal on roads with posted speed limits of up to 35 miles per hour. The eM1400 LSV utility vehicle seats two, offers 1,250 pounds of payload, 1,250 pounds of towing capacity, a top speed of 25 mph and a range of up to 45 miles. Its on-board charger plugs into any standard 110-volt outlet. Read more at Hybrid Cars and check out all the different configurations yourself at the Polaris website. In EVs, more torque does not always equal faster. Green Car Reports found this out when driving the Fiat 500e (with 147 pound-feet) against the similarly weighted Chevrolet Spark EV (with 400 pound-feet). The secret is, at least in part, in the gearing. The Fiat has a 9.6:1 reduction gear, making it quicker at lower speeds despite having far less available torque, while the Chevy uses a 3:1 ratio. The trade-off though, is in top speed. Furthermore, Chevy electronically limits the torque delivery at low speeds, as 400 pound-feet is a lot of launch for the little Spark EV to handle.

NHTSA investigates 1.7 million GM SUVs for windshield wiper failures

WASHINGTON - The U.S. National Highway Traffic Safety Administration (NHTSA) said on Tuesday it is investigating whether General Motors should recall an additional 1.7 million sport utility vehicles due to an issue with windshield wiper failures. GM in August 2016 recalled 367,800 2013 GMC Terrain and Chevrolet Equinox SUVs in the United States to address the problem. But after receiving 249 complaints about similar problems, the federal agency said it is probing whether the recall should be expanded to include an additional 1.7 million vehicles from the 2010-2016 model years. The automaker said it is cooperating with the NHTSA review. GM said it recalled the 2013 GMC Terrain and Chevrolet Equinox SUVs "because warranty data showed a higher-than-expected failure rate," adding it has continued to monitor field data on other model years of those vehicles. GM noted that no crashes or injuries related to the issue have been reported. The Detroit-based automaker said the recalls were prompted after a GM Canada brand quality manager reported a potential safety issue relating to reports of windshield wiper failures in Canada through GM's "Speak Up For Safety," program in late 2015. The data showed significantly higher field incidents in parts of Canada, which prompted a June 2016 recall there. Over the next two months, a higher number of U.S. reports prompted a U.S. recall, the company added. In the 2016 recall, GM said the front-wiper module would be replaced with a module that has a water deflector and, if needed, dealers would fill the water management hole and drill a new small hole in a different location.(Reporting by David Shepardson, editing by G Crosse)Related Video: Government/Legal Recalls Chevrolet GM GMC SUV