2001 Mazda Mx-5 Miata Ls 5-speed on 2040-cars

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Mazda Skyactiv-D racer first diesel to run at Indy in 60 years

While it may not be touting the old "Win on Sunday, sell on Monday" axiom we all know and love, Mazda recognizes that racing can only improve its cars. And so it's no surprise that the Japanese automaker is testing and refining its Skyactiv-D diesel engine by sending it out on various race tracks around the country - notably being the first diesel ever to compete at Daytona and the first to notch a Grand Am win at Road Atlanta.
Next up? Indy. It has been over 60 years since a diesel-powered machine ran at the Indianapolis Motor Speedway, and the Cummins-powered racer that competed in the 1952 Indy 500 with a 6.6-liter inline-six-cylinder oil-burner was a fast and brutal machine that set a new lap record in qualifying leading up to the race. Though that car was withdrawn with turbocharger failure 71 laps in, its diesel powerplant left an indelible impression on the racing community, and that's something Mazda hopes to accomplish once again.
Mazda says that the diesel engine in its race car is pretty darn close to stock - 51 percent stock by parts count, and 63 percent stock by weight - which means the way it performs in competition is at least a somewhat meaningful way to the stock engine's durability in the real world. Check out the image of the Mazda6 Skyactiv-D racer posing alongside the 1952 Cummins above (click to enlarge) and feel free to peruse the press release below for the rest of the details.

Mazda still has a team working on rotary engines

The flame still burns within Mazda to stage a rotary engine revival. Before you start getting excited, it's way too soon to start saving money for the fabled, next-gen RX-7 or RX-8. Still, company boss Masamichi Kogai confirmed to Autocar that the Japanese automaker has an engineering team dedicated to improving the Wankel. This development group has the hard task of trying to make the rotary stack up to modern internal combustion engines in terms of emissions and fuel-economy standards. Neither factor were ever exactly Wankel's strong suits. Kogai described them as working "very enthusiastically" to Autocar. The boss didn't discuss any future RX-vehicles or the size of the team, however, a report from last year indicated that there were 30 engineers in partnership with universities to update the engine's design. After problems keeping up with emissions and fuel economy, Mazda built it's last rotary for an RX-8 in June 2012. Since then, there have been intermittent rumors of a return. One possible solution was a design called the 16X that was supposed to offer more torque and better fuel economy. Another possibility was a small-displacement unit as a range-extender in an electric Mazda2. Rumors of a new RX-7 have been heard for years. In 2013, Kogai clearly said that it wasn't happening. When asked again last year, he reiterated the same point.

Electric Miata smokes Tesla Model S at the track

Yes, folks, you read that headline right. A souped up battery-electric version of a Mazda Miata took down a Tesla Model S on a quarter-mile drag strip. And it wasn't even close. Road Test TV was kind enough to post a video of a forest-green Miata (and its very stoked driver) doing a quarter-mile run in a rather brisk 9.27 seconds, beating the Model S sedan by a whopping 3.5 seconds in the process. And the Mazda crossed the finish line moving at 142 miles per hour, or 40 miles per hour faster than the Tesla was going when it finished the race. It's a good thing for the Tesla owner that they weren't racing for pink slips. Granted, the comparison is probably an unfair one because the Tesla was a stock, production vehicle (the P85 Performance model, but still), whereas who knows how the Miata was juiced up and how much cash it took to do the job. It's sort of like putting, say, an automotive writer against Usain Bolt because we ate the same breakfast and share 99 percent of our DNA. Still, the video does lend a certain credence to the idea that a battery-electric, super-light, rear-wheel-drive Miata would be a lot of fun, or at least a heck of lot more fun than any other Mazda out there. We're just sayin'. Check out the 100-second video below, and remember not to blink. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.