2011 Mazda Mx-5 Miata Sport Convertible Automatic, New Tires, Always Garaged on 2040-cars

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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 MX-5 Miata's more horsepower will cost less money

Mazda has already announced a power upgrade for the 2019 MX-5 Miata roadster after engineers tweaked the Skyactiv-G 2.0-liter inline-four for 17 percent more power and higher fuel efficiency than the outgoing 2018 model. Now we know the starting price for the soft-top version: $26,625, including destination charge, which is a $915 drop from the lowest-priced 2018 model. As is standard across the Miata lineup, output increases by 26 horsepower to 181 hp, with torque nudging up 3 pound-feet to 151 lb-ft at 4,000 rpm. Other new features also track with the changes previously announced for the 2019 Miata RF, including the telescoping steering wheel and standard rearview camera. But the soft-top version gets an available brown soft top for an extra $200 for the Grand Touring trim (a black soft top is standard), new package options at each trim level and optional traffic-sign recognition and smart city brake support, which offers automatic emergency braking at low speeds. Also new is that steering column, which is made of aluminum to save weight. Mazda will keep the six-speed manual as an option for all three trim levels, with an available six-speed automatic with paddle shifters and Sport driving mode. Standard features include LED head- and taillights, 16-inch wheels, Mazda Connect infotainment with a 7-inch touchscreen monitor, Bluetooth phone pairing and audio streaming, and keyless entry. Jump up to the Grand Touring trim starting at $31,675 and get 17-inch dark silver wheels, body-color interior trim, auto on/off headlights, auto-dimming driver's side mirror, rain-sensing windshield wipers, heated, leather-trimmed seats and a nine-speaker Bose Premium audio system, among other things. Mazda is also offering a $550 GT-S Package on the Grand Touring model with the six-speed manual, a front shock tower brace, limited-slip rear differential and Bilstein dampers. MX-5 Club models start at $30,485 and come standard with the GT-S Package goodies when equipped with the manual transmission. Automatic versions get standard heated cloth seats with contrasting red stitching, body-color interior trim, black 17-inch wheels, front air dam and rear lip spoilers.

Mazda CX-3 to be diesel-only in Japanese home market

Diesel power. It's not just for Europeans anymore. In fact, when Mazda introduces its new CX-3 compact crossover to its home market of Japan, the model will be exclusively diesel-powered, Reuters says, citing remarks made by Mazda CEO Masamichi Kogai. Consistent with its recent push for better fuel economy, Mazda is embracing diesel power as a way to boost fuel-economy for cars that may be larger than the compact variety. Mazda, which plans to make about 150,000 gas- and diesel-powered CX-3s for global consumption per year, is pricing the diesel CX-3 at about $20,000 in Japan. Diesel sales accounted for less than three percent of new-vehicle sales in Japan last year, so there's a risk to Mazda's strategy. But the automaker, which is the fifth-largest in Japan, says performance and noise (and smoke) issues largely associated with diesel powertrains in the past have largely been eliminated. In all, Mazda expects worldwide sales for the year ending March 31 to rise almost five percent from a year earlier to about 1.4 million units. Mazda showed off an early version of the CX-3 at the Los Angeles Auto Show last November, though North American versions of the model will indeed be gas-powered. Related Video: Featured Gallery 2016 Mazda CX-3: LA 2014 View 17 Photos News Source: Reuters Green Mazda Diesel Vehicles mazda cx-3