2014 Chevrolet Silverado 1500 Lt on 2040-cars

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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.

Chevy Silverado HD gets the Custom Sport treatment

Everyone remember the Silverado 1500 Custom Sport Chevrolet showed at the 2015 Detroit Auto Show? Good. Now, the company has applied the same styling treatment to its heavy-duty pickups, introducing the 2500 and 3500 Custom Sports. The two trucks appeared today at the 2015 Denver Auto Show. A monochromatic look is the order of the day, with the heavy-duty Silverados getting body colored bumpers both fore and aft as well as a body color grille. Chrome accents sit in said grille, while the shiny finish can also be found on the door handles and mirrors. Buyers of the 2500 Custom Sport will get five-spoke, 20-inch, polished wheels, while the brawnier 3500 gets 18-inch polished hoops as standard (dualies are downgraded to 17-inchers). Custom Sport models are only available in Summit White or Black. The trim package can be added to both LT and LTZ models, with a price premium ranging from $700 to $1,695, depending on the truck. Scroll down for the official press release from Chevrolet. Related Video: CHEVROLET INTRODUCES 2015 SILVERADO CUSTOM SPORT HDs Monochromatic appearance for 2500 and 3500 HD pickups DENVER – Chevrolet adds a sophisticated monochromatic look to the Silverado 2500 HD and 3500 HD with new Custom Sport editions, which debuted today at the Denver Auto Show. Silverado Custom Sport HDs feature body-colored front and rear bumpers, a body-colored grille with chrome-accent bars, chrome door handles and body-side moldings, and chrome-accented trailering mirrors. Silverado 2500 Custom Sports feature 20-inch polished aluminum wheels, while 3500 Custom Sports feature 18-inch polished aluminum wheels on single-rear-wheel models, and 17-inch polished aluminum wheels on duallys. Silverado Custom Sport HDs are available in LT or LTZ models in either Summit White or Black. Suggested retail package prices will vary from $700 to $1,695, depending on the model. Dealers can place orders now. Silverados targeted at unique customer needs The Silverado Custom Sport HDs join a family of Silverado 1500s targeted at the needs and tastes of specific groups of truck customers: The Silverado Black Out takes advantage of the black grille and bumpers of the Silverado 1500 WT to let customers to create a dramatic look at an affordable price. Available for regular and double cab WT models, the Black Out special edition includes 20" black painted aluminum wheels, P275/55R20 all-season blackwall tires, deep tinted glass and black bowties.

2014 Chevrolet Corvette C7 Convertible offers a few more views before reveal

Over the weekend, Chevrolet released its first images of the new 2014 Corvette Stingray Convertible. Now, ahead of the droptop's official introduction tomorrow at the Geneva Motor Show, the automaker has given us a few more shots of the softop C7 showing off the car's rump albeit from a high, strategically positioned angle.
From this angle, it's hard to get a sense for how long and flat the decklid really is, but we can easily see that, like the rest of the C7's design, the new convertible's decklid and tonneau cover are far more detailed than the current car. We also get a better look at the rear haunches sans brake vents, which have apparently been moved to underneath the car in order to accommodate the top's hard cover.
As for the overall styling of the C7 convertible, with the top erected, we get some idea of what a coupe design (as opposed to the Stingray's fastback shape) would look like on this car. The C5 Corvette most recently had a coupe model that did away with the large glass hatchback, and we recently reported on a low-cost "coupe" model potentially being added to the C7's repertoire.