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How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

Volvo and GM team with Amazon for in-car deliveries

Volvo and GM are the first automakers to pair their vehicles with a new service from Amazon that lets owners have their packages delivered inside their cars, without them having to be there. The service will initially be rolled out in 37 U.S. cities at no extra charge to Amazon Prime members with a Volvo On Call or OnStar account, and it works with same-day, two-day and standard shipping. It's intended as an alternative for people who don't want to risk having their package stolen from their front porch or receive deliveries at their workplace, and both automakers say it's an example of how they're embracing innovation as a way to make their customers' lives easier. Volvo released a video (above) showing how the service works. Users download the Amazon Key App (or " Ama-zin," as the narrator pronounces it) and link their Amazon Prime account with their Volvo On Call account — or OnStar, in the case of GM-branded vehicles. Once they register their delivery location in a publicly accessible location, users can select the "In-Car" option at checkout. They get a notification when the delivery is en route and once it's completed and the car is relocked. Volvo has been offering in-car delivery in certain European countries since 2015 through its Volvo On Call platform, which enables services like the ability to send calendar-based navigation destinations directly to the vehicle, find nearby gas stations and help locate the vehicle when you forget where you parked it. Volvo says the platform is now available in roughly 50 countries and covers more than 90 percent of its global sales. The service is compatible with 2015 or newer Volvo, Buick, Cadillac, Chevrolet and GMC vehicles. Volvo says it's available to the majority of Volvo owners, while GM says more than 7 million vehicle owners can qualify. The service is expected to roll out to more cities later. You can check eligibility at amazon.com/keyincar. Related Video: Buick Cadillac Chevrolet GM GMC Volvo Technology Infotainment Amazon connected car volvo on call e-commerce

Opel Ampera-e brings a Bolt of EV driving to Europe

The Chevrolet Bolt will take a trip across the Atlantic in 2017 to become Europe's Opel Ampera-e. General Motors won't release any specs for the foreign version yet, but these photos suggest very minor styling tweaks to the upper level of the grille and to the hatchback to add the appropriate brand emblems. We would expect the same electric motor with 200 horsepower and 266 pound-feet of torque and 60-kWh battery as the US model, too. However, the 200-mile range number might change, but only because of the differences in European testing. GM CEO Mary Barra announced the Ampera-e at the CAR Symposium in Bochum, Germany. "GM and Opel have always been convinced that electric cars will play a defining role in future mobility. The game-changing technology of the Ampera-e is a significant step toward realizing that vision," she said. The Ampera-e is also proof that General Motors loves confusing naming for its green models. If the Volt and Bolt aren't perplexing enough, the Ampera-e is just one letter off from the Ampera – the previous-gen Volt in Europe. GM no longer sells the range-extended vehicle there, so at least both names can't be in showrooms simultaneously. However, the similar monikers still might confuse some customers who think the new EV hatchback is closely related to the old sedan. Related Video: OPEL GROUP ANNOUNCES GAME-CHANGING AMPERA-e BATTERY ELECTRIC CAR New battery electric vehicle will break down barriers to electric mobility Five-door, five-seat Ampera-e will have longer range than most electric cars Fun to drive, outstanding connectivity and affordably priced Russelsheim. Opel Group will launch a revolutionary new battery electric car next year, as the company continues the biggest, most far-reaching model offensive in its history with 29 new models between 2016 and 2020. The new five-door, five seat will be called "Ampera-e". It will not only have a longer range on a full charge than most electric cars, it will also be affordably priced. Building on the electrification expertise established with the original Ampera, which set the benchmark for modern electric cars in 2011, the new Ampera-e combines innovative electric-mobility with state-of-the-art connectivity and exciting driving dynamics. Announcing the Ampera-e today at the CAR Symposium in Bochum, Germany, GM Chairman & CEO Mary Barra said: "GM and Opel have always been convinced that electric cars will play a defining role in future mobility.