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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 Though that car was withdrawn with turbocharger failure 71 laps in, its diesel powerplant left an indelible impression on the racing community, and that's something Mazda hopes to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.

2015 Mazda3 interior spied for the first time

In terms of exterior appearance, not much has changed from the last time we spotted the next-generation Mazda3 out testing. Oh, sure - we can see plenty of details that clearly show the new Kodo design influence (that front end reminds us a whole lot of the sleek new Mazda6), but these latest round of spy shots don't really show us anything we haven't seen before. Oh, wait, yes they do - the interior.
Feast your eyes on the Mazda3's insides, showing a vastly reworked interior that also takes cues from the automaker's most recently refreshed products. We can see that there's a simple, clean center stack with a slim row of heating and cooling functions, and up top there's a large, presumably touchscreen display, with redundant controls found just aft of the shifter.
We expect that the 2015 Mazda3 will debut at the Frankfurt Motor Show this September, packing both petrol and diesel engines. A sedan variant is also in the works, and should debut shortly after the hatchback.

Long Road Racing will build you the Miata that Mazda won't

One of the frustrating things about new cars today is that many features are exclusive to this trim level, or that package. Even the enthusiast-friendly Miata has many restrictions how you can configure one, which can make choosing one a bit tricky. You can't have the cheapest one or the leather-clad one with a limited slip differential, for example. And adding aftermarket parts on your own runs the risk of voiding your warranty. Long Road Racing, however, has a possible solution for creating the ideal, warranty-covered Miata. You may not be familiar with Long Road Racing, but you probably heard about one of its most-publicized products, the MX-5 Cup car. The car was developed by Mazda with the intention of creating a global spec series, and Mazda reports that about 140 of the cars have been sold so far. Every single one of those cars went to Long Road Racing to be specced out for racing before reaching their customers. So the company is familiar with the car, and has applied its expertise to its "Ultimate MX-5" program. The way the program works is, once you've purchased a 2016 or 2017 Miata, you can send it to the company to have it customized to your needs. The company has an extensive list of parts to choose from, all of which have been selected by the company to work well together. But if you need something outside of its offerings, or just need help choosing from the list, you can get in touch with the company to discuss how best to achieve your goals. Long Road Racing will also customize any trim level of Miata, and can even create a Miata Mazda didn't offer. For instance, you could have a Grand Touring with the leather interior, but also with the limited-slip differential and Brembo brakes from the Club model. All of these parts are fully warrantied by Long Road Racing for the length of the OEM warranty, and they don't void the factory warranty. We had the opportunity to try out a car customized by Long Road Racing at the M1 Concourse track in Pontiac, Mich. The car was there to sample alongside some of the MX-5 Cup cars as well as several of Mazda's stock road cars to drive on course. The road-going Long car started as a Grand Touring model, and it retains its heated leather seats and automatic climate control.