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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.

Chicago Auto Show page claims 2016 Mazda MX-5 Miata to produce 155 hp [UPDATE]

UPDATE: Mazda wasn't willing to confirm or deny the figures cited by the Chicago Auto Show, although we're betting the 155-horsepower figure is a bit on the low side. As for the CAS page, a Mazda spokesman told Autoblog that they "aren't sure where they got that number." The horsepower estimate has since been pulled down. Well, someone may have made a boo-boo. The Chicago Auto Show is currently hosting a page that claims the Mazda MX-5 will produce 155 horsepower, courtesy of a 2.0-liter, Skyactiv four-cylinder. If this is correct, it'd be the first time the MX-5's US power output had been revealed. The 155 hp figure would account for a 12-hp drop from that of the outgoing MX-5, though, a corresponding weight loss should still improve the power-to-weight ratio for the 2016 model. Now, the CAS page could simply be following previous reports, including one from Autoblog. As recently as October, it was being reported that the MX-5 would be powered by a 2.0-liter, Skyactiv four-cylinder, a version of which is producing 155 horsepower and 150 pound-feet of torque in the Mazda3. Naturally, we've reached out to Mazda for comment – or perhaps even confirmation – on the info from CAS, although we aren't expecting a reply until at least later this morning (darn time zones). Of course, as soon as we hear anything, we'll update this story. Related Video:

Evo pits Toyota GT86 vs. Mazda MX-5 Miata

The latest Deadly Rivals episode from Evo gets the Mazda MX-5 Miata and Toyota GT86 (our Scion FR-S) on track for a shakedown and a whole lot of drifting with Dan Prosser behind the wheel. The UK-spec coupes have slightly different power ratings than ours, but it's all close enough to be comparable. Their Miata has 158 horsepower (ours has 155), 148 pound-feet of torque, takes 7.3 seconds to run from naught to 60 62, and costs 22,695 pounds. The GT86, on the other hand, lists a 7.6-second dash to 60 62, and a base price of 25,000 pounds. The GT86 also weighs 400 pounds more than the Mazda. That's true in the States, too – curb weight for our MX-5 is 2,332 pounds, whereas the Scion FR-S comes in at 2,758 pounds. Both cars lauded for excellent shifting, but one of them has a better front end, a sweeter engine note, more controllable cornering behavior, and is faster by a tenth of a second around the test track. And Prosser doesn't mention it, but one has a lot more body roll. But it takes more than all that to make a winner, so check out the video above to see which is which. News Source: Evo via YouTube Mazda Scion Toyota Convertible Coupe Performance Videos toyota gt86 evo