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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 Miata could get retractable hardtop in New York

The upcoming New York Auto Show just got a little more exciting because Mazda could debut the latest MX-5 Miata with a power retractable hardtop there. The best evidence comes from Autocar, which has an image of Mazda's invitation. The message promises a "world premiere" in the Big Apple and further teases, "Help us blow the lid off the New York Auto Show." The last Miata PRHT made up 52 percent of the roadster's sales mix in the US, so creating another one is an easy decision for the company. According to Autocar, expect the new roof mechanism to be lighter and more compact than the previous design. It would still add some weight compared to the cloth top, but customers would get the added insulation and security from the hardtop. With the NC PRHT as a guide, don't expect many changes for the new other than the roof. The 2.0-liter four-cylinder with 155 horsepower and 148 pound-feet of torque with either the six-speed manual or automatic should still make for an exciting drive. The hardtop just makes life a little more comfortable if you have to deal with rain or snow for part of the year. We can't wait to see it. Related Video:

Mazda keeping non-hybrid, non-electric Skyactiv strategy

Mazda still thinks that it can buck the trend of adding those fancy batteries and electric motors to its cars. At least for a little while longer. Hopefully. Speaking to Auto Express recently, Mazda's European boss, Jeff Guyton, said that he expects his company's cars to be able to get a lot more efficient without resorting to any of that fancy electrification stuff. "I think there's at least 20-30 percent better fuel economy by the end of the decade," he said. He said that he expected to get to Europe's low target of 95 grams of CO2 per kilometer, "without any significant deployment of electrical drive." This part is all in line with Mazda's long-term Skyactiv strategy, as laid out back in 2011 and first mentioned publicly in 2010. Remember, this is the company that once proudly proclaimed, "Not Electric. Not Hybrid. Not A Drag To Drive." As explained back in 2011, Mazda hopes to wait until other automakers have done all of the heavy lifting on developing plug-in and hybrid tech so that when Mazda enters the market, things will be cheaper. Of course, Mazda has been quietly testing all-electric vehicles and Guyton said that there may be an Mazda EV at some point. "We are interested in electric technology and it will be in the distant future when it will be quite important," he told AE. "But we think it will take some time to be commercially attractive without tax payer-funded incentives." How much of a delay? Well, there is a gas-electric Mazda 3 hybrid available in Japan that uses some powertrain parts from the Toyota Prius, and we all know that the Prius has been around for ages. Maybe in 2025, Mazda will come out with a Leaf-based Mazda 2. Related Video: Green Mazda Fuel Efficiency Electric Hybrid skyactiv mazda skyactiv