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Mazda details diesel prototype at Daytona test

Diesel has without a doubt become the dominant fuel in the modern era of endurance racing. The 24 Hours of Le Mans has been won under diesel power for the past eight years running, as has every race in the FIA World Endurance Championship since its inauguration in 2012. Yet there will only be one diesel prototype entered in the top tier of the new Tudor United SportsCar Championship this year, and it belongs to Mazda.
The last Japanese manufacturer to win at Le Mans outright, Mazda has been gradually working its way back up the endurance racing ladder once again, following the example set by Audi with diesel power. Last year it campaigned a competition-spec Mazda6 Skyactiv-D in the GX class of the Grand-Am series, but rather than simply port over the existing racer into the new series, it's fielding a new prototype instead, just as it promised a couple of months ago. And now that prototype has hit the track for the first time, prompting Mazda to release its basic specs for the first time.
Tentatively referred to simply as the 2014 Mazda Prototype, the purpose-built racecar is testing this weekend in the Roar Before the 24, the official test session at Daytona that kicks off the racing season. It packs a 2.2-liter SkyActiv-D engine that's based heavily on the production version but tuned to produce 450 horsepower and 580 pound-feet of torque in race trim. Power is channeled through a six-speed sequential transmission from Xtrac, carbon brakes from AP and 18-inch racing slicks from Continental. With the Daytona-spec aero setup, it'll top out at around 186 miles per hour.

2015 Mazda3 shows its shape

Mazda's new Kodo design language is set to quickly spread across the automaker's entire lineup, judging by these spy shots of the next-generation Mazda3 that show some very familiar styling cues. No matter, we're impressed with what Mazda has done on the CX-5 crossover and Mazda6 sedan in terms of design, and we're happy to see the C-segment hatchback ditching the smile-for-a-mile Nagare design.
It's unclear what sort of architecture is found below the new Mazda3 - our spy shooters suggest that the car could simply be using a heavily massaged version of the Ford C1 platform found under the current car. Our best guess is that it's actually a reworked version of the platform used in the CX-5 crossover, however, chocked full of weight-saving Skyactiv technologies. After all, the CX-5 plays in the compact CUV segment, and those vehicles are commonly based on C-segment platforms. And besides, there's probably some economic savings at work with the new chassis - both in terms of fuel efficiency and economies of scale. Still, no one is totally certain what lies under all that black-and-white paper at the moment.
The new Mazda3 is targeted to arrive for the 2015 model year, meaning we could see a final production car debut as early as this year. We expect the hatch you see here to debut along with a traditional four-door sedan, and unless we hear otherwise, we don't doubt that a Mazdaspeed version will be far behind.

Mazda3 Skyactiv-Hybrid and CNG Concept shown in Japan

Mazda has received a tremendous amount of public and industry praise in the last few years, following up the successful introduction of its Skyactiv technology (powertrain and otherwise), with strong products like CX-5, Mazda6 and most recently, the Mazda3. At the Tokyo Motor Show, Mazda has taken yet another step forward with Skyactiv and the 3, showing the compact (called "Axela" in Japan) with an all-new compressed natural gas engine in the Skyactiv-CNG Concept.
The end result of the Skyactiv-Hybrid is fuel consumption estimated at something like 74 miles per gallon.
Mazda thinks that CNG-powered vehicles are due for an uptick in demand, and the company believes this new powertrain will add valuable breadth to the Mazda3 range. The CNG Concept is actually a duel-fuel vehicle, capable of running on either natural gas or gasoline. In fact, we're told that the high compression ratio (14:1) inherent in Skyactiv-technology gasoline engines makes conversion to CNG particularly simple.