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Celebrate the 4th of July with Autoblog's Car Club USA video series

If you've missed out on seeing and episode of Autoblog's newest series, Car Club USA, there's never been a better time to give it a shot than right now. CCUSA takes a deep look at various car cultures across the country: from Muddin' in the Deep South, to drifting on the East Coast, to Jeeping out west. No matter your automotive passion we have (or will have) an episode for you to jive with. Oh, and there are Corvettes. Who doesn't love a good Corvette? With the long holiday weekend in full swing, we couldn't think of a better time to help you get familiar with these great mini-films, or perhaps to watch one for the first time. If you like what you see, stay tuned – there's a lot more Car Club headed your way this year. Each Car Club USA episode features a different car club or event from across the US, where passionate owner communities gather to share automotive experiences and embark on incredible adventures. From Main Street cruises to off-road trails, catch all the latest car club activity on Autoblog. Chevrolet Coupe Car Club USA Videos

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.

Recharge Wrap-up: Tata unveils tiny H2 vehicle,Volt's new drivetrain explained

A new video explains the second-generation Voltec drivetrain in the 2016 Chevrolet Volt. The new Volt uses two planetary gear sets, a big difference from the first-gen Volt, which used just one. This opens up a multitude of various drive modes, and allows the engine to drive the wheels as well as the motor-generators. See the video above for the full, in-depth explanation, and read more at GM Authority. Coal power plants need to be retired to achieve air quality benefits from EVs. According to a study, EVs charged in coal-heavy regions produce more lifecycle emissions than gasoline vehicles. Depending on when they're charged, EVs with high-capacity batteries can be responsible for two to three times the amount of emissions as a hybrid car. In the near future, though, as coal plants are retired, this is expected to change. "When EV charging load is added to a power system, wind and solar plant output can't be turned up to respond because they are typically already fully utilized," says Jeremy Michalek, Professor of Engineering and Public Policy and Mechanical Engineering at Carnegie Mellon University. "Fossil fuel plants are the ones dispatched in response to new charging load. That's why the shift away from coal is so important for EVs." Read more at Green Car Congress. Tata has debuted the Magic Iris Ziva fuel-cell microvan at AutoExpo India. Replacing the Magic Iris' single-cylinder engine with a hydrogen-powered unit gives the Ziva 5 kW (6.7 hp) of power for normal driving, with a maximum output of 9 kW (12 hp) and 31 lb-ft of torque. It has room for five passengers, and features an eight-inch touchscreen display. Learn more at Green Car Reports. Related Gallery Tata Magic Iris News Source: GM Authority, YouTube: Alex on Autos, Green Car Congress, Green Car Reports Green Chevrolet Tata Motors Alternative Fuels Emissions Electric Hydrogen Cars Videos recharge wrapup