1985 Mazda Rx-7 Gsl Coupe 2-door 1.1l on 2040-cars

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2016 Mazda MX-5 Miata will rock 2.0L SkyActiv engine in US, 1.5L elsewhere

Let the speculation finally end - we know what will power the next-generation 2016 Mazda MX-5 Miata, and it's not turbocharged. The US model will get a SkyActiv 2.0-liter engine and six-speed manual, while models in the rest of the world have a 1.5-liter engine, confirming earlier rumors.
Unfortunately, Mazda isn't letting loose how much power either of these mills make just yet. For sake of comparison, the current SkyActiv 2.0 in the Mazda3 produces 155 horsepower and 150 pound-feet of torque, and the 1.5-liter in the UK (and elsewhere) has about 99 hp and 110 lb-ft of twist. However, the current Miata produces 167 hp and 140 lb-ft.
But fret not droptop fans. The company's brochure from the 2014 Paris Motor Show confirms, "all available drivetrains have been specially tuned for the all-new MX-5," which at least hints at the possibility of more performance. Also, even if the numbers remain untouched, the new Miata should feel even more sporting on the open road. That's because Mazda says the new model weighs in the neighborhood of 2,200 pounds; with that in mind, the 2016 car would boast around 14.19 pounds per horsepower versus 14.85 lb/hp in the present MX-5. Progress!

2017 Mazda MX-5 Miata RF Quick Spin | Elevate yourself

It's unusually hot in Western Washington; the early August sun beams through skies rendered hazy by fires a few hundred miles to the north. If you're not moving, it gets a bit oppressive, since there's just enough humidity to feel it and not enough wind to relieve it. Instead of huddling inside, window shades drawn, fan blowing hot air around impotently – this is how most Washingtonians, 75 percent of whom don't have A/C, handle the heat – we're taking our fan on the road. The best way to beat the heat, it turns out, is to climb into the forests. For this adventure in body temperature regulation, we've got a Mazda MX-5 RF, the Miata's semi-targa-topped variant, and a few hours of time. And the Cascade Mountain's foothills, thickly coated with Douglas firs and, higher up, subalpine firs soaking up as much sun as they can in the short growing season. I've lived near the foothills nearly all my life, but there's a lot of the Cascades I haven't explored. One area is Chinook Pass, a mountain road that crests at 5,430 feet. Looming almost 9,000 feet above it is Mount Rainier, so close you can almost touch it. Just about 100 feet below the summit is Tipsoo Lake, startlingly clear and sporting enough wildflowers to make The Sound of Music look like a movie about Rommel's North Africa campaign. But that's jumping ahead a bit. Between me and the summit is about 90 minutes of driving, through the suburbs and into the Enumclaw Plateau, and then along the chalky White River and up into the mountains. Plenty of time to focus on nothing but the surroundings, and the quality of the cooling action provided by the little Mazda. A quick word about the car, and my own biases – I love Miatas, but I have a complicated relationship with the latest MX-5, having owned a much more visceral (and much slower) first-gen car for about six years. On paper, it's this perfect modern interpretation of the original. It's light, it's a momentum machine, the steering's just a tad overboosted, and it has a playful amount of body roll while maintaining a healthy amount of mechanical grip. It looks aggressive enough, too, a major complaint of many folks about the last-gen car's Joker smile. The interior is largely brilliant, amazingly simple and interesting for such a lithe car. And yet, I have never found the new car to be as charismatic as my old Miata, with all its flaws. This puts me in the minority; most MX-5 fanatics find the ND to be a great compromise.

Mazda patents show rotary engine for range-extended EV

Two years ago, Mazda introduced a fascinating range-extended electric car called the Mazda2 RE Range-Extender. It took an electric Mazda2, and dropped in an itty-bitty 330cc rotary engine. It wasn't the rotary-powered sports car we had hoped for, but it seemed like a unique way to keep the quirky engine alive and kicking. But not long after the car's reveal, it seemed to disappear. Now the basic idea has resurfaced with a few modern updates in a couple of US patents. The first patent is pretty straightforward and describes a range-extended EV similar to the BMW i3. At the front is an electric motor driving the front wheels. At the back is an internal combustion engine that powers an electric generator. In the middle is a lithium-ion battery for storing and delivering electricity. It's the same set-up as that Mazda2. The second patent is for an engine start-and-stop system, but specifically for rotary engines. The system is designed to shut off a rotary engine when not needed, much as modern piston engines do. It also stops the rotor in a position that closes the intake port to ensure no fuel or exhaust emissions slip out through the intake tract. This is necessary since there are no valves in a rotary, and air and exhaust come through ports that are "opened" and "closed" by the rotor itself. The patent also describes the possibility of firing a spark plug after the fuel has been cut to eliminate any leftover fuel emissions. This system would theoretically improve a rotary engine's fuel economy and emissions significantly, which would be a boon as those are two of the rotary's major weaknesses. The rotary-engine patent also includes the same range-extended powertrain drawing as the first patent. It's there as a description of a possible application. And in such an application, where the rotary wouldn't have to run all the time, the system could take advantage of the rotary's inherent strengths. Weight can be kept low thanks to the engine's small dimensions, which should help in keeping the car sprightly and efficient. Rotaries are renowned for smoothness, too, so it shouldn't need too much refining and sound deadening, the latter of which adds more weight. The small size would also help with packaging, leaving more space for people, cargo, or possibly batteries. And since it has been patented, the company may be looking to bring the system to market.