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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.

2017 Tokyo Motor Show | Mega Gallery

The 2017 Tokyo Motor Show has been a big and busy one. It's also had machinery ranging from beautiful to bizarre. But there's been something for everyone. Companies such as Honda and Subaru brought performance oriented vehicles, Toyota showcased a wide array of funky and practical concepts, and Yamaha even broke away from motorcycles to do another car concept. You can check all of these vehicles out, and more in the galleries below. 2018 Honda Gold Wing: View 5 Photos Honda Neo Sports Cafe Concept: View 5 Photos Honda Riding Assist-e Concept: View 7 Photos Honda Sports EV Concept: View 5 Photos Honda Super Cub: View 3 Photos Isuzu FD-SI and Elf EV: View 9 Photos Lexus LS+ Concept: View 18 Photos Mazda Kai Concept: View 18 Photos Mazda Vision Coupe Concept: View 15 Photos Mitsubishi e-Evolution Concept: View 8 Photos Nissan IMx Concept: View 29 Photos Nissan Leaf Nismo Concept: View 8 Photos Subaru Viziv Performance Concept: View 12 Photos Toyota Century and Crown: View 7 Photos Toyota Concept-i Series: View 16 Photos Toyota GR HV SPORTS Concept: View 6 Photos Toyota Tj Cruiser: View 12 Photos Yamaha Concepts (Cross Hub, MOTOROiD, MWC-4, Motobot): View 5 Photos Related Video: Tokyo Motor Show Honda Isuzu Lexus Mazda Mitsubishi Nissan Subaru Toyota

Asian automakers still reluctant to use more aluminum

There's a logical progression of technology in the auto industry. We've seen it with things like carbon-ceramic brakes, which use to be the sole domain of six-figure sports cars, where they often cost as much as an entry level Toyota Corolla. Now, you can get them on a BMW M3 (they're still pricey, at $8,150). Who knows, maybe in the next four a five years, they'll be available on something like a muscle car or hot hatchback. Aluminum has had a similar progression, although it's further along, moving from the realm of Audi and Jaguar luxury sedans to Ford's most important product, the F-150. With the stuff set to arrive in such a big way on the market, we should logically expect an all-aluminum Toyota Camry or Honda Accord soon, right? Um, wrong. Reuters has a great report on what's keeping Asian manufacturers away from aluminum, and it demonstrates yet another stark philosophical difference between automakers in the east and those in the west. Of course, there's a pricing argument at play. But it's more than just the cost of aluminum sheet (shown above) versus steel. Manufacturing an aluminum car requires extensive retooling of existing factories, not to mention new relationships with suppliers and other logistical and financial nightmares. Factor that in with what Reuters calls Asian automaker's preference towards "evolutionary upgrades," and the case for an all-aluminum Accord is a difficult one. Instead, manufacturers in the east are focusing on developing even stronger steel as a means of trimming fat, although analysts question how long that practice can continue. Jeff Wang, the automotive sales director for aluminum supplier Novelis, predicts that we'll see a bump in aluminum usage from Japanese and Korean brands in the next two to three years, and that it will be driven by an influx of aluminum-based vehicles from western automakers into China. Only time will tell if he's proven right. News Source: ReutersImage Credit: Sean Gallup / Getty Images Plants/Manufacturing Honda Hyundai Mazda Nissan Toyota Technology aluminum