2004 Mazda Rx8 6 Speed Nordic Green 80k With New Engine Less Than 1k Miles on 2040-cars

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Mazda hard at work on Skyactiv 2 engine technology

As Mazda continues the current rollout of its still-new Skyactiv technology, the automaker is already looking at improving its family of engines for even better fuel economy and emissions reductions. Automotive News reports that with stricter fuel economy and emissions regulations planned for 2020 and 2025 in Europe, Mazda will likely release engines with next-generation Skyactiv 2 technology by the end of this decade, and Skyactiv 3 units just five years later.
The latter is expected to focus on improved engine cooling and lessening energy losses, but the big news in AN's report is that the next-gen Skyactiv 2 engines will use Homogeneous Charge Compression Ignition, or HCCI. This type of ignition is very similar to how a diesel engine operates (with high compression and using the compression stroke for fuel combustion rather than spark plugs), a method said to provide a cleaner and more efficient fuel burn - to the tune of a 30-percent improvement in fuel economy compared to current Skyactiv engines. Other automakers, including Hyundai, have already announced they are developing HCCI powerplants with similar technology and characteristics, so Mazda likely won't be a lone wolf here.
Equipped with HCCI technology, Mazda figures to be able to compete with larger automakers in terms of fuel economy and emissions without resorting to hybrid powertrains, continuously variable transmissions or automatics relying on more forward gears (eight or more) for optimal efficiency. Some of the challenges of HCCI, according to AN, include the need for better engine cooling, risk of misfire at high and low rpm and uneven engine performance based on fuel properties.

Latest Forza Motorsport 5 car pack leaves us scratching our head (in a good way) [w/video]

As we scrolled down the roster of the latest car pack for Forza Motorsport 5, the Hot Wheels Car Pack, our expression became bemused over the strange mix of vehicles that we now have at our disposal. This is quite unlike any of the other sets of DLC Turn 10 Studios has offered. Sure, there are the typical headliner cars – the Lamborghini Veneno and 2015 Audi S3 – that will appeal to the mainstream racing fan or auto enthusiast. But this latest car pack is so jammed full of nuggets of automotive weirdness that it's hard not to get excited. The Hot Wheels pack has no shortage of racers, with a particular focus on historical offerings. A 1939 Auto Union Type D covers the pre-war era of Formula One, while a 1967 Lotus 49 and a 1952 Ferrari 375 represent post-war racing. For a modern twist, a Mazda USF2000 car slots in below the Indy Lights car from the Nurburgring booster pack. From here, things get vintage and weird. There are a pair of delightfully offbeat coupes, in the form of a 1974 Toyota Celica GT and a 1973 Ford XB Falcon GT (here's hoping we get a vintage Holden Monaro in the future). Those two are joined by a 1956 Ford F-100, which your author already plans on converting into a dragster with vinyl flames down the side (because that's what all vintage pickups should be). The new ride we're most excited about, though, is the 1983 GMC Vandura G-1500. Yes, that's the van from The A-Team, and we're sure it will prove to be an excellent canvas for the artists of FM5 to cover with airbrushed, fire-breathing unicorns and mystical, gray-haired wizards (or just poorly painted letters that read "Free Candy"). This latest car pack is the final monthly car pack for FM5, although Turn 10 is quick to point out that while the monthly updates are over, there will still be new batches of cars made available to gamers. As for the Hot Wheels pack, it's available now on Xbox Live for $9.99. Scroll down for the press release from Turn 10 Studios, as well as a video of the newest additions to Forza Motorsport 5's vehicle roster. Forza Motorsport 5 Hot Wheels Car Pack Now Available Turn 10 Studios is bringing the Hot Wheels® Car Pack to "Forza Motorsport 5," available for download today. The pack features a collection of vehicles built from the ground up for the new generation that car fans can collect and customize while putting their virtual driving skills to the test.

Xcar tries to figure out what makes the Miata so great

Over the past 25 years and 3 model generations, the Mazda MX-5 Miata has shown that you don't have to be the best to be a massive success. The little, Japanese roadster has never been the absolute peak of automotive performance, but it's precise handling, good reliability and frugal running costs have helped make it a star. Autoblog recently tried to give you the experience of driving one on video, and now Xcar Films has made its own in an attempt to show what makes this droptop an icon.
As Xcar puts it, the Miata isn't the world's best sports car, but it is the world's favorite. When they were originally designing the roadster, Mazda's engineers took everything that made British droptops from the '60s great, and junked all of the stuff that made them a terror to own. The result was a car that would start up everyday with no fuss and get drivers wherever they needed to go with a huge grin on their face.
The fourth-generation Miata is imminently on the way for its September 3 unveiling, and the very early rumors indicate that Mazda doesn't plan to rock the boat too much with the latest one. It supposedly rides on a longer wheelbase and wider track but with the weight trimmed by over 200 pounds. Check out Xcar's video for a primer on MX-5 history and why the automotive world loves this little roadster.