2007 Mazda Mx-5 Miata Grand Touring Convertible 2-door 2.0l on 2040-cars

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Mazda6 Skyactiv-D Racecar ready to bring diesel to Grand-Am

It may not be quite as radical as some of the company's past rotary racers, but the new Mazda6 Skyactiv-D racecar does have a notable powertrain underhood: the automaker's brand-new clean diesel four-cylinder engine.
Three of these new diesel-powered Mazda6 racers will take to the track in the Grand-Am GX class of the upcoming 2013 Rolex 24 at Daytona on January 26, with five drivers on each team. The car you see above, number 70, is sponsored by Mazda's longtime motorsports partner, SpeedSource.
Check out our full gallery of high-res images live from the 2013 Detroit Auto Show above and feel free to read through the related press release from Mazda below.

Bauer Catfish is a Miata-based trackstar in the making [w/videos]

We're not trying to make a joke here. The creation you see above really is called the Bauer Catfish, and while the name is about as attractive as your average bottom feeder, the car itself is built on a sexy notion. Take the mechanical bits of one 1990-2005 Mazda MX-5 Miata, add in a tube chassis for as little weight as possible, complete with some custom body work and go forth. Bauer says the finished product weighs in at just 1,550 pounds, and the company will be happy to pull the stock four-cylinder to drop in a healthy General Motors LS V8.
The pre-production prototype shown above competed in last year's 25 Hours of Thunderhill, finished the race and earned a spot on the podium in the "anything goes for sports racers" ESR class. Very cool.
If you're looking for a dedicated track car, it may not get any better than this for the money. Expect to pay around $13,900 depending on options, plus the cost of your donor Miata. That's a good sight cheaper than a used Chevy Corvette Z06 and likely to be quite a bit more fun. After you're done watching it in action in the brief videos below, check it out over at Bauer Ltd.

Red Bull RX-7 goes drift crazy on New Zealand's Crown Range

For the first time ever, the Crown Range, New Zealand's highest paved road, was closed off for the drifting pleasure of one man. That man is Mad Mike Whiddett, and the machine he's piloting is a heavily modified Mazda RX-7 sponsored by the energy-rich crew from Red Bull and powered by a 750-horsepower quad-rotor engine. There will be smoke. Lots and lots of smoke.
Mad Mike hits speeds in excess of 140 miles per hour over the course of the road's six and a half miles, which boasts 47 individual corners at over 3,500 feet of elevation. Scroll down for all kinds of fire-belching, tire-squealing and smoke-inducing action. Or, as Mad Mike himself puts it, "A dream turned into reality."