2011 Chevrolet Suburban Ltz on 2040-cars

Auto blog

GM faces possible class action lawsuit over 8-speed transmission

General Motors has been hit with a class-action lawsuit from owners who allege the eight-speed automatic transmission found in several rear-wheel-drive Chevrolet, Cadillac and GMC models between the 2015 and 2019 model years has a defect that causes the vehicles to hesitate and jerk when accelerating or slowing down. The lawsuit was posted to ClassAction.org and spotted by GM Authority. Problems with GM's Hydra-Matic 8L90 and 8L45 transmissions have been well-documented on Internet forums and via complaints filed with the National Highway Traffic Safety Administration, with many reporting damage to their vehicles. The lawsuit was first filed in December in U.S. District Court for the Southern District of Florida but appears to have been transferred recently to New York. Autoblog sought comment from Theodore Leopold, the lead attorney for the plaintiffs. "These transmissions have a common defect," the complaint reads. "Drivers attempting to accelerate or decelerate their cars feel a hesitation, followed by a significant shake, shudder, jerk, clunk, or 'hard shift' when the vehicle's automatic transmission changes gears." The problem also occurs when the vehicles accelerate in a single gear, without shifting, the plaintiffs allege. "Drivers have reported that the shift is sometimes so violent, they feel as though they have been hit by another vehicle." The problem is believed to center on the transmission, torque converter or both. The complaint says it causes undue friction, causing hydraulic systems and gears to function improperly and sometimes leaves metal shavings throughout the transmission, leading to costly repairs and replacement of parts or the entire transmission. It says GM has known about the problems since shortly after it introduced the transmissions, and has issued 13 technical service bulletins, none of which have resolved the problem. GM declined to comment on the lawsuit. The plaintiffs say GM should have warned consumers about the issues and covered repairs under each vehicle's three-year/36,000-mile bumper-to-bumper warranty. They're seeking statewide classes in at least six states: California, Florida, Illinois, New York, Oklahoma and Texas.

Top Gear names BMW i8 Car of the Year, Corvette, Ferrari, Mercedes also win big

The lads at Top Gear have released their listing of the finest cars of the past year, handing the ultimate honor to BMW's revolutionary i8 plug-in-hybrid supercar. "The i8 is a milestone in the annals of automotive history and a glorious statement for an exciting and positive future. The i8 delivers - and then some," the British mag wrote. The i8, though, was far from the only hybridized car to take victories. James May and Richard Hammond both highlighted hybrids as their personal cars of the year, with May saluting the Ferrari LaFerrari and the Hamster, unsurprisingly, heaping praise on the Porsche 918 Spyder. Jeremy Clarkson, meanwhile, opted to shock many by selecting not only an American car as his best of 2014, but giving the honor to of all things, a Corvette. Clarkson wasn't the only person to honor the USA's iconic sports car, with the new, 650-horsepower Z06 variant being named TG's Muscle Car of the Year. Other big winners include Mercedes-Benz, which TG honored for S-Class Coupe (Luxury Car of the Year), the new AMG GT (Sports Car of the Year) and the not-for-US C-Class Estate (Family Car of the Year). The 458 Italia Speciale A snagged a second win for Ferrari. The best of the rest include the Citroen C4 Cactus, Renault Twingo, Volkswagen Golf R, Lamborghini Huracan and Audi TT. Take a look below for the celebratory press blast from BMW. The BMW i8 wins Top Gear Car of the Year The BMW i8 has been named as Top Gear magazine's global Car of the Year 2014. The plug-in hybrid performance vehicle beat off some stiff competition from a host of other premium and luxury manufacturers to win the overall award. The editorial team of Top Gear commended the BMW i8 for its breadth of abilities. Its 1.5-litre three-cylinder turbocharged petrol engine combined with an electric motor gives searing acceleration and driver enjoyment but all wrapped in a package that takes BMW's EfficientDynamics philosophy to the extreme courtesy of CO2 emissions less than 49g/km and a 135mpg combined cycle figure. Charlie Turner, Editor in Chief at Top Gear magazine, said: "The BMW is a milestone in the annals of automotive history and a glorious statement for an exciting and positive future. The i8 delivers – and then some. It's the kind of car we should celebrate, a beautiful vision of the future, delivered now.

GM learning from current Chevy Volt owners as it works on next-gen model

Details of the second-generation Chevrolet Volt extended-range plug-in hybrid are coming in at a trickle, and the latest is that the 2016 model-year Volt will be improved in all meaningful areas, including performance and all-electric range, says General Motors powertrain director Larry Nitz. 60 percent of Volt customers only charge using a standard 110 outlet. Nitz was speaking to Autoline After Hours about the current and future Volt. He said that GM has been tracking Volt driving habits and found that about two-thirds of the Volts' collective miles are driven in electric mode, and that 81 percent of all Volt trips were done in pure EV mode. Additionally, Volt drivers plug the car in 10 times each week, on average. Nitz also said 82 percent of the Volt's commuting miles are coming from the plug instead of the gas tank. Oh, and 60 percent of Volt customers only charge using a standard 110 outlet. Last month, GM released a teaser shot of the 2016 Volt (above) and said the car would make its worldwide debut at the 2015 North American International Auto Show next January. Earlier this year, the Volt was reported to be getting a new chassis for the upcoming version. The Volt could use a bit of new life. Through August, Volt sales were down 12 percent from a year earlier to 13,146 units, and sales plunged 25 percent alone. That compares unfavorably to the Nissan Leaf battery-electric vehicle, whose 2014 sales have jumped 34 percent to almost 19,000 units. You can see Nitz dish the goods in the video below (Volt comments start at around minute 15). You will also notice AutoblogGreen contributor Gary Witzenburg talk about his history with the EV1 and share his take on the Volt. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.