1990 Miata, Manual, 91985k Original Miles 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:

Mazda reveals 25th anniversary edition MX-5 Miata alongside next-gen chassis

Ford may be celebrating the 50th anniversary of the Mustang this week, but it's not the only automaker with a sports car icon to fete at this year's New York Auto Show. Mazda is also celebrating the 25th anniversary of the MX-5 Miata with an array of 15 classic models. It's also showing off the chassis for the next MX-5, and unveiling a special 25th Anniversary Edition.
The special edition is based on the retractable hardtop model with either manual or automatic transmission, Bilstein shocks, a metallic red paint job with contrasting black roof and an off-white leather interior. Naturally, special badging can be found inside and out to set it apart from the record 940,000 other MX-5s sold to date, and just 100 examples will find their way to US buyers.
Along with the two-tone special, Mazda is also showing off the new Skyactiv chassis and engine that'll underpin and power the upcoming next-generation MX-5 (as well as an as-yet-to-be-determined Fiat Group roadster if the two parties can work out their differences). With a lower center of gravity that's also closer to the middle of the car, the new chassis promises even better balance and a good couple hundred pounds of weight savings over the outgoing model. Check it all out in the press releases below.

2002 Mazda MX-5 Miata powered by a Jaguar-sourced V6 for sale

Cars & Bids, a relatively new site that specializes in auctioning modern enthusiast cars, is selling a 2002 Mazda MX-5 Miata. While that's hardly unusual, this example lost its four-cylinder engine and gained a Jaguar-sourced V6. Pulling a 3.0-liter six out of a 2000 S-Type and dropping it into an unsuspecting Miata is apparently easier than it sounds. England-based Rocketeer offers a kit that makes the swap reasonably straightforward, though the listing notes the factory air conditioning system is not compatible with the new engine. Cold air aside, the installation is done so neatly that it looks like Mazda envisioned the Miata with a bigger engine. Jag's V6 inevitably adds weight to a roadster praised globally for its nimble handling, but it also brings a whole lot of horsepower to the table. Left stock, a 2002 Miata is powered by a 1.8-liter four-cylinder that makes 142 horsepower and 125 pound-feet of torque. The example listed on Cars & Bids puts 220 horsepower and 221 pound-feet of torque under the driver's right foot, figures that easily offset the weight gain. And, somewhat surprisingly, the six spins the rear wheels through a stock five-speed manual transmission. Flyin' Miata sway bars and Koni shocks improve handling. Close the hood, and this Jagazda looks like a run-of-the-mill 18-year-old Miata. The seller made no modifications to the body, it's still painted in its original shade of silver, and he kept the stock 15-inch wheels. The dual exhaust tips hint at the V6, but they're subtle enough to surprise more than a few racers at the next autocross event. The auction is live now, and bidding stands at $4,250 as of writing with about three days left before the hammer drops. If you miss your chance to bag it, several shops sell kits that let skilled shade-tree mechanics shoehorn Mazda's K-Series V6 (which powered the MX-6 and the Ford Probe, among other cars) into an older Miata. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.     Featured Gallery 2002 Mazda MX-5 Miata with Jaguar V6 View 14 Photos Aftermarket Jaguar Mazda Convertible