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Weekly Recap: GM plans massive new paint shop at Chevy Corvette factory

General Motors is laying out some serious green to maintain the Chevy Corvette's expansive color palette. The automaker is breaking ground on a new paint shop this summer that's part of a $439-million investment to upgrade the 34-year-old Bowling Green, KY, factory that builds the Stingray. The massive new structure will total 450,000 square feet, nearly half the size of the current 1-million square-foot facility. Construction is expected to take two years and won't impact Corvette production. The upgrades include new robots that save paint and create a better finish, longer, more efficient ovens to bake in the finish, and LED lighting. There's also a dry scrubbing booth technology with a limestone handling system that eliminates waste. GM has invested $135 million in the factory in last four years for the changeover to build the C7 and to relocate its Performance Build Center to Bowling Green. The improvements continue to modernize the Kentucky factory, which has become a tourist attraction in its own right, as more than 56,000 enthusiasts visited it last year. The upgrades are part of a $5.4-billion investment GM confirmed in April that will remake its US footprint in the next three years. The Bowling Green expansion underscores GM's continued commitment to the Corvette, which sold nearly 38,000 copies around the world last year, an eight-year high. "With this major technology investment, we can continue to exceed the expectations of sports car buyers for years to come," North American manufacturing manager Arvin Jones said in a statement. OTHER NEWS & NOTES Takata recall hits 34 million vehicles The National Highway Traffic Safety Administration expanded the Takata airbag recall to an almost unthinkable 34 million vehicles on Tuesday. The recall is part of an agreement reached by the two sides where Takata admitted some of its airbag inflators have a defect, and the deal compels the company to comply with all future regulatory actions and investigations. Takata's airbag inflators were produced with "a propellant that can degrade over time" and lead to ruptures, NHTSA said. Six deaths have been attributed to the flaw worldwide. Investigations conducted by Takata, automakers, and others have not determined the exact cause of the inflator problem, but NHTSA said moisture appears to alter the propellant's chemical structure. It then ignites too rapidly, creates too much pressure that ruptures the inflator, and blasts shards of metal at passengers.

Mazda Skyactiv-X Review | The revolution begins with a squeeze-bang

The matte black Skyactiv-X prototype looks like a rough Mazda3, perhaps reconstructed after a bad wreck by an over-enthusiastic owner of a spot welder and lots of gaffers' tape. Ribbed ducts poke out of the dash sending two breaths of conditioned air to no one in particular. Even its revolutionary engine, the thing we're here to experience, is entombed in a massive, nondescript cover to mask its unseemly noises. It's a wild, strange way to meet a very unconventional vehicle that promises diesel-like fuel economy, a wide torque band, and an exotic method for burning less gas than ever before. It takes a few hours for Mazda's engineers to explain the fundamental principles of operation. For more detail, read our Skyactiv-X Spark Controlled Compression Ignition explainer, but here's a very brief overview. Skyactiv-X marries some traditional gasoline engine characteristics with a novel form of compression ignition called SPCCI. The key for Skyactiv-X is to use very high compression in the cylinder and an extremely lean fuel-air mixture. Squeezed right to the cusp of getting hot enough to blow up all on its own (which is very hard to predict), a squirt of extra gas and a spark interject to cross that compression-ignition threshold in a controlled and predictable manner. See the animation below: That takes a few essential components to get just right. One is a massive amount of computer processing power and some pressure sensors in the individual cylinders, because the ambient conditions change how and when these things happen. Skyactiv-X uses a clutched supercharger to pump in additional air when needed to nail the mixture precisely, and high-pressure injectors to get the low ratios of fuel to disperse properly in the chamber. And since it operates like a conventional gasoline engine sometimes, it uses valve timing to lower the very high compression ratio so it doesn't reach combustion ignition in that mode. In practice, the Skyactiv-X runs in compression ignition mode most of the time. In practical terms, that means it drives like a torquey gasoline Skyactiv engine. The torque curve is broad and flat — diesel-like in that respect. That also means it can get away with using a six-speed transmission and a lower final drive for better response. There's enough grunt and economy together that Mazda can let the engine spin faster — at 60 mph, it's running at roughly 1,000 more RPM than a similar gas engine, with greater efficiency.

Mazda Miata livery design contest in Forza Horizon 2

If you're into video games, creativity, the Mazda MX-5 Miata and South by Southwest, then there's a contest in Forza Horizon 2 you'll want to know about. Called the Livery Design Contest, your job is to head to Xbox Live sometime before midnight on January 4, 2015 and design a paint job for the 1994 Miata in the game. A panel of judges will evaluate designs for originality, aesthetic design and technical proficiency, and settle on up to five semifinalists who will regroup in the next round, which is public voting. Come January 26, the public can begin voting on its favorite design until February 12, to narrow the semifinal pool down to two. Those two will be flown to South by Southwest in Austin, TX – which happens from March 13-22 – and one of them will be crowned the winner. Said winner will lumber away from the event with $3,500 worth of prizes, including a 55-inch curved-screen television, and their livery will be free to all of the minions playing Forza Horizon 2. There's also a Mazda hub on Xbox Live for everyone to take an in-depth look at the 2016 Miata, if you just like to watch, in which case you may also want to see the related videos joining the press release below. MAZDA TEAMS UP WITH XBOX TO LAUNCH 2016 MX-5 - Mazda MX-5 Livery Design Contest Now Live in Forza Horizon 2 - - Branded hub allows Xbox users to virtually tour 2016 MX-5 and enter MX-5 design contest - Winning design to be featured in Forza Horizon 2 and gifted to all players IRVINE, Calif. (December 4, 2014) – For the second consecutive year, Mazda North American Operations (MNAO) is teaming up with Xbox, this time to promote the launch of the 2016 Mazda MX-5 and give Forza Horizon 2 players the chance to enter the Mazda MX-5 Livery Design Contest. An interactive experience with the 2016 Mazda MX-5 and information on the design contest will be available through the Mazda branded hub on Xbox 360 and Xbox One. The Mazda MX-5 Livery Design Contest, which is now live through January 4, 2015, will give Forza Horizon 2 players the opportunity to design the livery for the 1994 Mazda MX-5 currently available in-game. Two finalists will be awarded a trip in March to South by Southwest 2015 for the final design showdown. The winner will walk away with a new 55-inch curved TV, audio music system, Xbox One Kinect console and one MadCatz Racing Wheel estimated at $3,499.95.