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Mazda ad showing Facebook updates while driving criticized by Senate committee [w/video]

Senate Commerce Committee Chairman Jay Rockefeller, D-WV, held an all-day summit on Thursday to discuss the dangers of using modern technology while driving, during which an ad that Mazda aired during the Super Bowl was used as an example of the worrisome future towards which we're headed. While seemingly innocuous at first glance, the ad, which can be seen below, shows a brief glimpse of a driver using the Mazda Connect infotainment system in a Mazda3 to check/update his Facebook page while driving down the road.
Officials from major communications companies like Samsung, Google and Apple attended the summit, as well as representatives from automakers including General Motors and Toyota. A representative from Mazda was not present despite the company's own currently available technology being used as the poster child for the issues being discussed.
According to Automotive News, Senator Rockefeller warned the automaker and communication execs on hand that he will propose legislation to regulate the use of technology while driving if they don't work together to implement their own standards more quickly. Michael Robinson, GM's vice president of sustainability and global regulatory affairs, argued that his company has had distracted driving guidelines in place for 15 years since the advent of its OnStar system, noting that the technology in question has also helped the automaker save lives through automatic crash detection and calls to 911.

Mazda files patents for a sequential twin-turbo setup

Mazda has a history of interesting engine technologies, from yesterday's rotary engine to tomorrow's compression ignition engine, and new patents show it still may have some internal combustion tricks up its sleeve. The one on display in these patents isn't especially new in concept, though. A sequential twin-turbocharger setup is something Mazda itself used on the third-generation RX-7. But it's something we haven't seen much of lately. It looks like it could have some possible advantages over older sequential systems, and it has some potential advantages for enthusiasts. First a quick and dirty primer for what makes a sequential twin-turbo system distinct from other twin-turbo systems. In many twin-turbo engines, there are simply two turbos that work together as one bigger turbo. They're the same size, and they spool up at the same time. With a sequential setup, at low rpm, a smaller turbocharger is spooled up first at low-rpm for quicker throttle response, and as the rpm and exhaust pressure increases, a valve opens up that allows a larger turbocharger to also spool up and provide high-rpm boost. That's basically how the Mazda design shown above functions. A big flap blocks off the larger turbocharger exhaust inlet, channeling all the exhaust to the smaller turbo. When more exhaust is available at high rpm, it looks like that flap opens up to spool up the big turbo, too. What's interesting here is that the way the turbochargers are packaged takes up less space than past systems. It looks like both turbos are contained in one unit that shares the same exhaust outlet, meaning the exhaust manifold could be kept simple and compact. In fact, the piping for compressed intake air could also be shared, reducing the amount of piping, which would further decrease the amount of materials and possible failure points. There are a number advantages of making this system smaller. The potential applications of the system are much greater, since it could fit in smaller cars with smaller engine bays. Making the system smaller also means that there won't be as much weight, which is important from both fuel economy and performance standpoints. Finally, the smaller setup likely uses fewer materials, which could make the system cheaper and thus easier to offer on a wider range of vehicles, or at least more profitable for Mazda.

Jay Leno brings a rotary-powered VW Beetle to the garage

It takes something really unique or inventive to pique Jay Leno's interest. His show, Jay Leno's Garage, has featured everything from concours-worthy classics to completely custom, home-built machinery. How do you get Leno to feature one of more than 20 million Beetles on his program? Stick a turbocharged rotary engine under the hood. The Beetle's owner, Mario Markakis, swapped the car's stock flat four-cylinder for the Wankel engine from a 1990 Mazda RX-7 Series 5 Turbo. The engine's 250 horsepower are fed through a reinforced version of the Beetle's stock four-speed transmission. That's about five times the original engine's output. It works well, with the car putting down some impressive times at the drag strip. Markakis did most of the work to the Beetle in his garage. In addition to the engine swap, he's modified the car's brakes, suspension, and interior. Check out the video to hear all the details of this custom Wankel-powered Volkswagen. Related Video: Celebrities TV/Movies Mazda Volkswagen Classics Videos Jay Lenos Garage rotary mazda rx-7