1994 Chevrolet Camaro Z28 Coupe 2-door 5.7l on 2040-cars

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Hot Wheels' Twitter-enabled vending machine coughs up free Camaro diecasts

There are still plenty of companies that haven't gotten the whole social media thing down pat yet, but Hot Wheels isn't one of them. During the recent Canadian International Auto Show in Toronto, Hot Wheels created a lot of buzz for itself by using a vending machine filled with Chevrolet Camaro models, but instead of money to get the cars, show attendees just had to use Twitter.
To get the free car, people were asked to send a tweet to Hot Wheels Canada saying what they liked about the new Hot Wheels Edition Camaro, and including the #ChevyCIAS hashtag. This seemed to be a popular marketing tool, too, as AdWeek reports that the @HotWheelsCanada account more than tripled in followers during the course of the 10-day show. Looking ahead, this could open up even more innovative marketing possibilities using social media.
Check out the video posted below to watch how it works, and while the auto show has ended and the free-car giveaway has too, we're almost certain that some of the 1,500 freebies will make their way onto eBay.

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.

What we know, and think we know, about the 2016 Chevy Volt

With the next-gen Chevy Volt due to make an appearance at the Detroit Auto Show early next year, bits and pieces about the new car are making their way into the press. Perhaps most importantly, the new Volt is going to have better "fuel economy and efficiency," according to GM executive vice president Mark Reuss. The current Volt gets 98 MPGe and 37 miles per gallon on premium fuel. It also has a 38-mile electric-only range. We don't know how GM will improve the efficiency or to what degree, but the logical options include making the car lighter, giving it better aerodynamics and/or improving the powertrain. To that end, one of the big things we don't know for sure includes information on the new gas-powered engine. Forbes says it will be a downsized 1.0-liter, three-cylinder mill instead of the 1.4-liter, four-cylinder used in the current model, which could certainly help the car be more efficient. The new Volt is also going to have more technology, which shouldn't surprise anyone. GM is now openly talking about how it will change the way it markets the Volt, shifting away from the mass-market mentality to focus on the regions where the car is already popular. "There's a Northeast and West Coast market for Volt, and there's nothing wrong with that," Chevy chief marketing officer Tim Mahoney told Forbes. There are rumors that the new Volt will have seating for five by adding a seat in the back. This is something a lot of current Volt owners would love, but we've heard nothing official hinting that this would be the case. We expect the battery to be the new 17.1-kWh version, or maybe even have a capacity increase, so GM would have to seriously repackage the pack to eliminate the ridge that runs from between the front seats and then back to the rear two seats. If you've heard anything official, do let us know.