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NHTSA closes book on Ford, GM probes of 600,000 vehicles

US safety regulators have closed a pair of investigations into some 500,000 Ford Crown Victoria, Mercury Grand Marquis and Marauder sedans built between 2004 to 2007, and 100,000 Chevrolet Impala models from 2014. The Ford investigation focused on rusting heat shields, which may become dislodged and jam the steering, according to Reuters. The National Highway Traffic Safety Administration found that this happened very rarely. In fact, of the ten incidents filed with the government safety watchdog, six came from a single police department, which evidently had some sort of problem with its reporting. As for the Impala, the NHTSA investigators attributed two incidences of "unintended autonomous braking" to user error. In both cases, the vehicles were involved in rear-end collisions. According to GM investigators, it's believed that drivers accidentally activated the electric parking brake, causing the collisions. The vehicles in question were rental cars. Featured Gallery Ford Crown Victoria Related Gallery 2014 Chevrolet Impala View 10 Photos News Source: ReutersImage Credit: Ford, Chevrolet Government/Legal Chevrolet Ford Safety Sedan ford crown victoria mercury grand marquis

More 2017 Chevy Bolt powertrain details revealed

We've seen the production version of the Chevy Bolt electric vehicle. We've driven a prototype version. And now it's time to get some details about the powertrain. After the production version's reveal at CES last week, GM trotted out the Bolt EV for its Detroit debut this morning. The company brought with it a bunch of technical specifications. We'll start with the most important part of an EV: the battery. GM has put a 60-kWh lithium-ion battery that weighs just just 960 pounds into the floor of the Bolt. As previously announced, the Bolt's 288 cells will be able to go over 200 miles on a full charge. That full charge takes nine hours on a Level 2 EVSE thanks to the onboard 7.2-kW charger. Of course, a full charge won't be that important most days, which is why GM says that you can get 50 miles of range in "less than two hours" on Level 2. There's a SAE Combo DC fast charging option as well. The battery will have an eight-year/100,000-mile warranty. The Bolt will be able to sprint up to 60 miles per hour in "less than seven seconds" thanks to a 150-kW/200 horsepower motor in the Bolt. The motor is a new GM design that can produce up to 266 pound-feet of torque. The Bolt uses a shift-by-wire system and an, "offset gear and shaft configuration tailored to meet efficiency and performance targets." The Bolt EV's powertrain has a 7.05:1 final drive ratio. You can read all of the details direct from GM below. Related Video: Drive Unit and Battery at the Heart of Chevrolet Bolt EV Engineers focus on careful balance of range and performance DETROIT, Mich. – The 2017 Chevrolet Bolt EV does more than set a new benchmark for affordable, long-range EV driving. It also raises the bar when it comes to driving performance. Engineers developed the Bolt EV's propulsion system to offer more than an estimated 200 miles (based on GM estimates) and a delightful driving experience that's more akin to a compact sports sedan than a small utilitarian crossover. "Being the leader in range and affordability means nothing if the car isn't going to excite you each time you get behind the wheel," said Josh Tavel, Chevrolet Bolt EV chief engineer. "That's why the team was tasked with delivering a propulsion system that would also make the Bolt EV an electric vehicle that owners would love to drive." Single Motor Drive Unit Like most EVs on the road, the Bolt EV's drive system uses a single high capacity electric motor to propel the car.

2016 Chevrolet Malibu Hybrid Quick Spin [w/video]

If a Chevy Volt is like a hybrid that prefers its electric motor, then the new Malibu hybrid is like a Volt you never have to plug in. That's partly because you can't plug it in, but more because the Volt and the gas-electric Malibu share a lot of major components. Since we happen to like the newly refined Volt, that's good news for the larger family sedan. The shared parts include the blended braking system, A/C compressor, the auxiliary power module, and most of the hybrid transaxle (what you might call a fancy electro-transmission). In the Malibu, the electric motors use neodymium magnets for efficiency and power, while the Volt has weaker ferrite magnets to reduce drag, and the Volt also gets an extra clutch to lock out the engine. The two use different batteries, with their size, power capabilities, and chemistry suited to the task for each vehicle. Unlike most of the midsized sedan leaders, the Malibu has never had a full hybrid option. For a few years in the last generation, Chevy offered the Malibu Eco with a version of GM's eAssist mild-hybrid system, which featured a small motor-generator in place of an alternator hooked up to a bigger battery that could harvest energy during deceleration and add some back in when you hit the throttle; it also brought engine stop-start functionality to save a little more fuel. But it saved only a little fuel, so eAssist was nixed in favor of a more efficient four-cylinder with a standalone stop-start system. Driving Notes Mode switches between gas and electric are just as smooth as in the Volt. No shudder or weirdness in the throttle. It drives as much like a gas-only car as any midsized hybrid does. The blended braking system is also noticeably well sorted. There's no deadness in the pedal, no touchiness, and no artificial, wooden feeling when you step through the regen portion of its travel. There's nothing abrupt or jarring about any of the experience, and the Malibu's baked-in quietness helps to deal with noise from the somewhat coarse 1.8-liter gas engine. Engine startup and shutdown are noisy from outside, but much less noticeable from within. The 2016 Malibu is larger yet lighter. The hybrid weighs about 125 pounds more than a comparably equipped 1.5T. You don't notice the extra weight, but there is some space eaten out of the trunk by the battery.