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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.

Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video:

2019 Mazda CX-9 Review and Buying Guide | Fun for the whole family

The 2019 Mazda CX-9 crossover is the biggest vehicle in the Japanese automaker's lineup, and the only one to offer a third row of seating. It has only one powertrain option, but offers a wide variety of other content across various trim levels. Many folks are drawn to Mazdas for their elegant design, affordability and driving dynamics that are sharper than most, and the CX-9 has all of that to a certain degree even if it's the biggest, most family-oriented one. Still, the CX-9 may be big for a Mazda, but it's one of the smallest in its segment in terms of third-row space and cargo capacity, so it may not be for every family. What's new with the Mazda CX-9 for 2019? Though largely unchanged from when this generation debuted for the 2016 model year, the Mazda CX-9 gets a few small changes for 2019, the biggest of which is the addition of Apple CarPlay and Android Auto compatibility, which is optional on its lowest Sport trim and standard on the Touring, Grand Touring, and Signature. The transmission has been retuned for a smoother, quieter driving experience. Thicker floor mats and headliner further help to make the car quieter. Each trim gets a little something new, too. Sport now offers an optional Sport Package, costing $1,290, with heated front seats, a power driver's seat, heated mirrors, lane-keep assist, adaptive cruise control and automatic emergency braking. Moving up to the Touring trim, the only other change is a frameless rear-view mirror. The Grand Touring trim gets a new 7-inch info screen in the instrument panel, along with new power-folding side mirrors and a 360-degree camera system. The top-level Signature trim gets new badges, rosewood interior trim, and accent lighting in the grille and around the shifter. Along with the new features, the CX-9 increases in price. The Sport trim costs a mere $150 more, the Touring and Grand Touring trims go up by $370, While the Signature jumps $1,050 compared to the 2018 model. What are the CX-9's interior and in-car technology like? The interior varies by trim level, but with Mazda making moves to grab customers from some of the luxury brands on its "path to premium," the higher grades do look and feel like a high-quality, comfortable place to spend time. It's a spacious interior with room enough for a third row. There are some rally nice materials in use, depending on the trim level, including Nappa leather and something called Santos Rosewood.