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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.

Next Chevrolet Malibu to have 'groundbreaking,' 'passionate' design

In our First Drive of the Chevrolet Malibu after its redesign in 2013 we wrote, "Chevy has quickly worked up a host of changes for its ever-important midsize sedan, and will be launching this 'there, we fixed it' 2014 Malibu like it's an all-new product." Still, no one cared. The Malibu has been mentioned in eight posts this year, all but two of them dealt with recalls, and one of those two was about a 2011 Malibu university science project. It came up in precisely zero posts from November 2013 to March 2014. That's why, according to a report in Automotive News, Chevrolet honchos are "hustling" to have a new Malibu ready in a year. Mark Reuss, General Motors' head of global product development, said it will have "groundbreaking design" and "groundbreaking technology," and asked investors who were showed a picture of it, "When is the last time you saw a [midsize] car this distinctive and this dramatic from General Motors?" Doubling down on the bullishness, Reuss said, "We've got our act together here on the midsize-car segment." Then, throwing every last chip on the pile, global design head Ed Welburn said the next Malibu's design will "make a significant statement" with "a very passionate design." Based on the number of comments Malibu posts get, we figure a fair few number of you would love for this to be the case; yet this is a lot of braggadocio to slather on a car that probably hasn't made "a significant statement" since Elton John had a number one record with Honky Chateau. That was 1972, if you're trying to remember. No matter the looks, the AN report says the new 'Bu will make a profit statement, selling for more money while costing less to produce. Alongside the Cruze, GM figures the pair will bring in an extra $800 million in variable profit in 2016. Which, in case it ends up being another 'butterface,' isn't bad for a silver lining. Featured Gallery 2014 Chevrolet Malibu: First Drive View 36 Photos News Source: Automotive New - sub. req. Design/Style Chevrolet GM Sedan

Why Cadillac thinks it needs to succeed in Europe to sell cars elsewhere

Ward's Auto has taken an interesting look at the renewed focus General Motors is showing towards Cadillac in Europe. Susan Docherty, president and managing director of Chevrolet and Cadillac in Europe (pictured), says in order for the luxury brand to thrive in China, it first needs to succeed in the old country. The reason? Chinese buyers look to Europe for cues as to what's deemed worthy of the term "luxury." There are hurdles to the plan, however. In addition to the fact that the EU is flooded with high-end nameplates, GM doesn't necessarily have the distribution network in place to put buyers behind the wheel.
Combine that with persistent economic woes and Cadillac's checkered past marred by a lack of diesel engine options and a bankrupt distributor, and the road ahead for the brand looks like less of an uphill climb and more like a straight-up cliff face. But Docherty is optimistic and says she has a plan for the brand. We recommend heading over to Ward's for a closer look at the full read.