2014 Mazda Mazda6 I Sport on 2040-cars

Auto blog

Mazda Skyactiv-X Review | The revolution begins with a squeeze-bang

The matte black Skyactiv-X prototype looks like a rough Mazda3, perhaps reconstructed after a bad wreck by an over-enthusiastic owner of a spot welder and lots of gaffers' tape. Ribbed ducts poke out of the dash sending two breaths of conditioned air to no one in particular. Even its revolutionary engine, the thing we're here to experience, is entombed in a massive, nondescript cover to mask its unseemly noises. It's a wild, strange way to meet a very unconventional vehicle that promises diesel-like fuel economy, a wide torque band, and an exotic method for burning less gas than ever before. It takes a few hours for Mazda's engineers to explain the fundamental principles of operation. For more detail, read our Skyactiv-X Spark Controlled Compression Ignition explainer, but here's a very brief overview. Skyactiv-X marries some traditional gasoline engine characteristics with a novel form of compression ignition called SPCCI. The key for Skyactiv-X is to use very high compression in the cylinder and an extremely lean fuel-air mixture. Squeezed right to the cusp of getting hot enough to blow up all on its own (which is very hard to predict), a squirt of extra gas and a spark interject to cross that compression-ignition threshold in a controlled and predictable manner. See the animation below: That takes a few essential components to get just right. One is a massive amount of computer processing power and some pressure sensors in the individual cylinders, because the ambient conditions change how and when these things happen. Skyactiv-X uses a clutched supercharger to pump in additional air when needed to nail the mixture precisely, and high-pressure injectors to get the low ratios of fuel to disperse properly in the chamber. And since it operates like a conventional gasoline engine sometimes, it uses valve timing to lower the very high compression ratio so it doesn't reach combustion ignition in that mode. In practice, the Skyactiv-X runs in compression ignition mode most of the time. In practical terms, that means it drives like a torquey gasoline Skyactiv engine. The torque curve is broad and flat — diesel-like in that respect. That also means it can get away with using a six-speed transmission and a lower final drive for better response. There's enough grunt and economy together that Mazda can let the engine spin faster — at 60 mph, it's running at roughly 1,000 more RPM than a similar gas engine, with greater efficiency.

2014 Mazda3 breaks cover early, in Euro-spec at least

We're set to get a closer look at the US-spec 2014 Mazda3 later today, but AutoExpress has the first peek at the machine's European cousin (after initial leaks reportedly came from a Czech outlet). The photos show a compact that's taken plenty of design inspiration from its older sister, the Mazda6. That's excellent news, as the larger car's dynamic front fascia, accentuated fender arches and long nose translate well to the Mazda3. Inside, there are are new and improved material choices, and the longer wheelbase means occupants get to enjoy more room than before. There's also a larger trunk with 12.3 cubic feet of cargo capacity.
Buyers in the EU can get their hands on a 1.5-liter Skyactiv-G gasoline engine with 99 horsepower, though the old 2.0-liter four-cylinder will still be available in either 118 hp or 163 hp configuration. A 2.2-liter diesel tops out the engine choices.
The 2014 Mazda3 is lighter than its predecessor and boasts disk brakes and a multi-link rear suspension on every trim. That means this thing should be fun to shuffle around. Stay tuned for details on the US-spec variant later today, including a lot more images of the good-looking hatch.

2016 April Fools' Day: Morgan digs at Tesla, Mini's scissor doors, more

Every year automakers go out of their way to come up with gags for April Fools' Day. Sometimes the jokes fall flat, but occasionally a company really nails it with an idea that we'd actually love to see. Rather than scouring the Web for all of these stunts, you can find some of our favorites right here. Morgan MOGrod The Morgan Motor Company's MOGrod is one of our favorite April Fools' jokes so far this year because it's a car we wish could be real. The company says on Twitter that the retro hot rod uses a 3.7-liter Ford V6, and there are already 250,000 preorders, which is a play on the huge number of reservations for the Tesla Model 3. Morgan took the joke even further by sketching a landspeed record version for the Bonneville Salt Flats. Mini Scissor Doors The people at Mini apparently have a lot of free time because the company has two gags this year. The first is the scissor door option. The idea cleverly plays on the myriad ways customers can customize their Mini, but this solution doesn't look like anyone could easily enter the car due to the way these doors open. Mini Hipster Hatch There's also the Hipster Mini, which is a much funnier idea. This fictional hatchback would be perfect for fashionable Millennials thanks to features like Instagram-filter windows and a fixed-gear drivetrain, which limits the top speed to 25 miles per hour. The interior uses stonewash denim upholstery and packs a twin-deck cassette player. Skoda Dog Umbrella People love dogs, and owners know that a wet canine can be a mess. Skoda is ready to tackle this problem with an umbrella for your mutt. Made from unobtainium, the gadget hides in the door when not in use, but when raindrops start falling, people can keep their pup dry. Skoda Snowman Skoda's Facebook page also teases us with a very cool vehicle. The Snowman is a 396-horsepower plug-in hybrid snow machine. With its tracks, the company's newest model would never have to worry about getting stuck in the winter. Opel Adam C Sure, electricity and hydrogen are cleaner forms of fuel than gasoline or diesel, but Opel has a way to make your car even more environmentally friendly – muscle power. Wind up the crank at the rear for 15 minutes, and the Opel Adam C is good for 125 miles. GM's European division also claims that owners get a great workout because a full winding session burns 400 calories. You wouldn't feel guilty about picking up that pizza after cranking up this hatchback.