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2019 Mazda CX-5 Signature Diesel First Drive Review | A tardy inessential

We were suspicious of the much-delayed Mazda CX-5 Diesel when it finally arrived at our office late this summer. Had it surfaced four or even two years ago, we might’ve been more bullish, but at least we werenÂ’t cynical — yet. Even the Volkswagen Dieselgate crisis couldnÂ’t turn our hearts against the CX-5 Diesel. We already like the CX-5, after all, we also like the eager torque, quiet ride and excellent fuel economy the Skyactiv-D engine would surely provide. But then we got the EPA ratings for the the CX-5Â’s diesel engine: 27 mpg city and 30 highway. Granted, thatÂ’s in an all-wheel-drive vehicle, but itÂ’s a serious disappointment. The turbocharged, gasoline-powered 2.5-liter I4 in the CX-5 Signature gets 24 combined mpg, while offering up to 250 horsepower and 310 pound-feet of torque. The diesel version is down 82 hp (at 168) and 20 lb-ft (at 290), while elevating fuel economy to 27 city, 30 highway and 28 combined. The non-turbo gas motor in lesser AWD trims narrows the gap to just 2 combined mpg in favor of the diesel. So whatÂ’s the selling point for the Skyactiv-D? Mazda says itÂ’s a premium experience, and thatÂ’s why itÂ’s only available in the top trim level. ItÂ’s easy to flinch at that, but it makes some sense, when you look at other diesels in the U.S. market The Signature trim of the CX-5, as with the Mazda6 weÂ’ve come to adore, is good enough to target the lower end of, say, Audi customers who are looking to get a bit more content for the buck. These might also be the same people whoÂ’ve come out of a TDI vehicle and are already sold on the diesel experience. From the first squeeze of our right foot, the diesel CX-5 makes a good impression. In town, we diced our way through Woodward Avenue traffic, made easy mostly by the CX-5Â’s relative small size and agility. There is one point in the throttle tip-in when the engine sounds particularly growly, and somehow more massive than its 2.2 liters of displacement. The illusion began to crumble when we reached our first highway entrance ramp. Putting our foot to the floor, we got the quick first hit of growly torque, followed by Â… well not much. This engine begins to run out of steam as it climbs the rev ladder. ThatÂ’s not totally unexpected, but it was definitely disappointing. Furthermore, as Assistant Editor Zac Palmer points out, “By opting for the diesel, you add 115 pounds to the curb weight (now 3,940 pounds) of a comparable 2.5-liter turbo (3,825 pounds).

Mazda G-Vectoring Control makes driving better without you knowing

Mazda has just spent eight years developing a new technology that will make its new cars a lot more fun to drive, even if you have absolutely no idea that it's working. And subtlety's the point, Mazda engineers told us at a press event at Mazda Raceway Laguna Seca. In fact, the effects of what they've dubbed G-Vectoring Control are so fine that the marketing and PR teams are at a loss for how to do their jobs with it. "The engineers have done their work," said Mazda Director of Communications Jeremy Barnes, "But how do we get the message across?" The basic premise is this: G-Vectoring activates only when the car's on-board computer reads simultaneous steering and throttle input. The data — including throttle position, steering angle, and, crucially, how quickly you're adjusting the steering angle — are then funneled through an algorithm to reduce engine torque, which transfers vehicle weight, adding more grip to the wheels that need it. The system will appear first on 2017 Mazda6 sedans arriving in showrooms later this year, followed by the 2017 Mazda3. Actually, "subtle" does not even begin to describe the effect. G-Vectoring Control can detect as much as one tenth of one degree of steering angle, and changes the cornering forces only 0.1 to 0.5 g as a result. "That's less than the human body can feel," explained Vehicle Development Engineer Dave Coleman. In practice, G-Vectoring reduces the steering angle at turn-in, as well as the rate at which one turns the wheel. To demonstrate, Director of R&D Kelvin Hiraishi rode shotgun with us in a specially equipped Mazda6 that allowed him to turn G-Vectoring on or off at the push of a button (production cars will always have it on). Hiraishi had us drive a number of courses, including Mazda Raceway Laguna Seca itself, while an engineer measured our steering inputs with a laptop Matrix'd into the car's electronic brain. I drove the same course several times with the same car in the same conditions, with cruise control locked and the system turned on or off. Lo and behold, with G-Vectoring activated, the engineer's output graph showed that my steering inputs were indeed reduced ever so slightly. There were two times that G-Vectoring was markedly noticeable. The first on a turn with a minor banking toward the outside, and the second was during cornering over an artificially wet section of the course — in other words, when the car was at the limits of adhesion.

Mazda Kai concept hints at a more muscular, refined Mazda3

Mazda is packing some serious punch for the Tokyo Motor Show, unveiling a stylish hatchback it's calling the Kai Concept to go along with the earlier reveal of the show-stopping Vision Coupe. The compact five-door concept heralds a new generation of cars for the Japanese automaker, which is best known for making sporty, smallish and well-designed vehicles — such as the Mazda3, from which this concept derives its design direction. This version smooths over most of the Mazda3's sharp body creases in favor of smooth, undulating body panels that dramatically reflect light and reflect Mazda's KODO design language. It also gets more narrow, aggressive-looking headlights and a unique overhead profile, with two panes of glass that continue from the windshield and are intersected by a solid-color center, like a U-shaped moonroof. The Kai is powered by a next-generation Skyactiv-X combustion engine, which uses Mazda's proprietary compression ignition system to give the gas-powered engine the fuel efficiency, torque and initial acceleration response of a diesel powertrain. Which is encouraging, considering the Mazda3 already delivers impressive fuel economy. Inside, the concept hints at more refinement, with streamlined chrome accents popping from the black dash and interior panels. It all rests on Mazda's Skyactiv Vehicle Architecture that reflects human-centered design philosophy in everything from redesigned seats to maintain the spine's natural "S" curvature, to NVH tweaks to encourage a quieter, more comfortable ride. Mazda has said it plans to put this concept into production, but there's no word yet on when exactly that will be.Related Video: