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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.

Miata driver pulls off hilariously diabolical move in fender-to-fender racing

Racing is all about finding the little advantages over competitors that allow you to get ahead. Sometimes those are legitimate means - like being able to take advantage of a better line through a corner - and other times drivers get a little more creative for a leg up over opponents. Sometimes things might even go a little too far. Case in point: just watch the opening of this Mazda MX-5 Cup race from Silverstone in the UK.
According to the YouTube description, we're riding with James Rogers in this video, and he appears to be pretty talented behind the wheel. Rogers has a great start from fifth that has him in third within just a few corners. He starts stalking the top two drivers, who are already having a fantastic race themselves, but then we see that the person in second is clearly willing to do whatever it takes to win. Just watch the video, and you'll see what we mean. Bravo (?) to that racer for some very quick, albeit fiendish, thinking.

Mazda considers expanding Takata recall nationwide

Vehicle recalls have come in force recently. Honda expanded its front driver's side Takata airbag inflator recall nationwide to cover an estimated 5.4-million vehicles, and the National Highway Traffic Safety Administration added 19 notices to its database covering safety campaigns dating back to October. It looks like there could be one more to add to the list soon because Mazda is considering a possible nationwide expansion of its own inflator repairs. A company spokesperson tells Reuters that there is no decision yet when to actually make this nationwide expansion of the driver's side inflator recall official, and the company isn't sure how many vehicles may be affected. Mazda just expanded the scope of its Takata inflator recalls to additional regions earlier in December. The move took its total number of units in need of repair from around 65,000 under the earlier NHTSA estimate to 86,773, according to the company. So far, the automaker's US campaign has included the 2003-2007 Mazda6, 2006-2007 MazdaSpeed6, 2004-2008 Mazda RX-8, 2004-2005 MPV and 2004 B-Series pickup.