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Consumer Reports digs Mazda3, disses Jeep Cherokee

Consumer Reports has just rendered its verdict on two of the more important cars to launch this year - the Mazda3 and the Jeep Cherokee. Considering the value a "Recommended" rating carries with the public and the viciously competitive markets these two cars compete in, Consumer Reports' view could have some impact on their initial success.
For Mazda, that's a good thing. CR spoke quite highly of the Zoom-Zoom brand's compact sedan and hatch, testing both models, and citing the excellent fuel economy and snickety-snack manual shifter as high points. Downsides to the 3 included a ride that is agile but "nervous," a bit too much noise and a cramped back seat. Still, the 3 was good enough to earn its place in the ranks of the "Recommended."
The Jeep didn't fare quite so well, with CR calling the polarizing CUV "half-baked." Although both engines were tested, the magazine called the 2.4-liter four-pot underpowered and its nine-speed automatic unrefined and unresponsive. That's particularly damning, considering the 9AT's role in future Chrysler products, including the extremely important 200. Overall, the Cherokee missed out on the coveted "Recommended" rating.

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.

Mazda teases electric car again with peek at interior

Mazda is again touting the new electric vehicle it plans to reveal at the Tokyo Motor Show, this time teasing it from the inside. A 15-second video homes in on features found on the center console, namely, the blocky shifter for the automatic transmission, a large, knurled rotary dial for infotainment control, and a smaller dial we'll assume is for volume control. As for what else we can make out, if we were to guess, we'd say the slick surface to the right of the shifter is a screen. It'll be interesting to see how Mazda designers filled the space between the seats, but we're surprised Mazda went with such a substantial shifter; this being an EV on a new, dedicated platform, designers could have minimized the focus on shifting and opened up a host of other uses.  A brief press release informs us that Mazda's worked to liberate the cabin from structural clutter, though. The brand says the interior is "designed to give occupants a feeling of being 'enveloped in openness,'" and that the "goal [is] to make spending time in the car a comforting experience that allows customers to be themselves." Empty spaces throughout the center console "create a connection between the driver and passenger seat areas," so perhaps what looks like a free-floating console demo section in the video is what the unit will look like in the car. Elsewhere, the EV will feature eco-friendly materials. The EV isn't expected to make it to America, its powertrain designed to satisfy residents of particularly dense urban environments. The running gear should stick close to the drivetrain developed for the e-TPV prototype, meaning a 35.5-kWh battery powering a single electric motor at the front axle producing 138 horsepower and 195 pound-feet of torque, and a single-speed transmission. Range is thought to be around 120 to 150 miles on a charge. The onboard charger can handle 6.6-kW home charging and 50-kW rapid charging. Eventually, a range-extender version with a rotary engine should join the lineup; Mazda said it chose a rotary because even though it's less efficient than competitors' ICE range extenders, it's so much quieter. The debut of what everyone expects to look like a crossover happens on Oct. 23.