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Chevy Bolt EV's battery shows big improvements over Spark's

Plug-in vehicle battery technology moves fast, and all you need to do to see this in action is to take a look at the new 60-kWh lithium-ion pack inside the 2017 Chevy Bolt EV. Well, you need to do that and then compare it to the battery packs inside of GM's other plug-in vehicles. And you don't even to go as far back as the EV1 to see progress. Let's start with what we know about the new Bolt's pack. It is supposed to drive the Bolt EV over 200 miles on a full charge. It weighs 960 pounds and is made up of 288 cells. Chevy's other all-electric car, the limited-availability Spark EV, had a 19-kWh pack and offered 82 miles of range. It had 192 cells and weighed 474 pounds. So, in the few years since the Spark EV was released, GM engineers have figured out how to get three times the energy capacity and almost two-and-a-half times more range out of a pack that weighs only about twice as much. And that doesn't even get to the price drops. GM has figured out how to get 3x the energy capacity and almost 2.5 times more range out of a pack that weighs only twice as much. Speaking of those 288 cells, that number might sound familiar to regular readers because that's exactly how many are in the new Chevy Volt. But the packs in the Volt and the Bolt are entirely different beasts. For one thing, while the Volt cells are made by LG Chem in Holland, MI, LG Chem will make the Bolt's cells in South Korea. The cell chemistries are also different. We spoke with GM engineer Tim Grewe (again) and while he declined to answer some of our Bolt battery pack questions until more details are unveiled at the SAE World Congress in April, he was able to explain a few things. "The cell inside the Chevy Bolt EV was specifically designed for EV range so it's up on energy," he said. "That's a different cell chemistry than on the extended range Chevy Volt, which is a smaller pack, smaller energy but more power per cell. We work with all of those vehicle requirements and customer demands and we say how do we meet this and we change the chemistry to make it all work." Comparing the 60 kWh in the Bolt and the 18.4-kWh pack in the Volt is really one of those apples to oranges issues, he said. "If you look at the Volt battery pack, how it went from where it was and where it's up to, from 38 miles to 50 miles, that was basic, overall industry improvement. Now, the 18 [kWh] to the 60 [kWh] is extended range vs. EV.

The Chevy Cruze Hatchback arrives in the US this fall

We knew this was coming, but now it's official. Chevrolet will sell a five-door Cruze in the US beginning in late 2016, and here it is, ahead of its debut at the 2016 Detroit Auto Show. Previously, the Cruze Hatchback was available in other markets, and the decision to not offer it Stateside was apparently "a pre-bankruptcy planning mistake," according to GM's Mark Reuss in earlier reports. The 2017 Cruze Hatchback builds on the second-generation Cruze we saw last summer, adding a wealth of functionality – there's 42 cubic feet of cargo space available with the rear seats folded. Plus, the Cruze sedan is lighter and stiffer than its predecessor – more than 200 pounds have been shaved off the compact car's curb weight. While the Cruze sedan is available in four trims – L, LS, LT, and Premier – the five-door will only be available in LT and Premier guise, but can be had with the optional RS appearance package. All Cruze models are powered by a 1.4-liter turbocharged inline-four engine, with 153 horsepower and 177 pound-feet of torque. Standard amenities include Apple CarPlay and Android Auto via Chevy's MyLink infotainment system, as well as a raft of high-tech safety features. Pricing information isn't available as of this writing, though we expect the Cruze Hatchback to command a slightly higher premium than the sedan. For comparison, a new Cruze LT sedan starts at $21,995, with the Premier coming in at $23,995. We'll have official numbers closer to the Hatchback's on-sale date this fall. Chevrolet Introduces 2017 Cruze Hatch HERE'S THE STORY Ahead of its debut at the North American International Auto Show, Chevrolet today introduced the 2017 Cruze Hatchback. Developed with all the technologies and dynamic driving attributes of the all-new 2016 Cruze sedan, the new hatch adds a functional and sporty choice for customers. It joins Colorado and Trax as the latest Chevrolets to push into new segments. PRODUCT DETAILS The Cruze Hatch has the same, class-leading 106.3-inch (2,700 mm) wheelbase as sedan models, but features a unique roof and rear-end structure – including wraparound taillamps and an integrated spoiler at the top of the liftgate. It opens to offer 18.5 cubic feet (524 liters) of cargo space behind the rear seat. With the rear seat folded, cargo space expands to 42 cubic feet (1,189 liters).

Watch how Corvette Racing's new collision-avoidance radar system works

When it comes to technology used in racecars, we generally expect it to trickle down to production cars, not the other way around. Well, Pratt & Miller has developed a new rear-facing radar that operates in a similar fashion to what we're used to in modern blind spot detection systems, only it is also capable of tracking cars as they approach and relaying vital information to the driver via a large display screen.
The innovative radar system debuted at last weekend's 12 Hours of Sebring for Corvette Racing, and this system makes perfect sense for endurance races like this since the cars sometimes have to drive through the night and in poor weather conditions.
The radar can detect cars even with poor visibility, and uses easy-to-distinguish symbols for the driver to identify.