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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 halts Mazda3 sales for fuel tank problem

Mazda is issuing a stop sale and recall on 14,406 examples of the 2015-2016 Mazda3 in the US with build dates between May 21, 2015, and August 24, 2015, due to a possible fuel leak. There are no reports or accidents or injuries from this problem. According to the company, a defective fuel shut-off valve can allow gasoline to move from the tank and fill the charcoal emissions canister. If it gets too full, there can be a leak, which obviously carries the risk of a possible fire. The engine might stall, as well. Affected owners will be notified to bring their Mazda3 in "as soon as possible." Dealers will inspect the vehicles, and if a problem is found, the fuel tank and charcoal emissions canister will be replaced. During the downtime, customers will get a free rental or loaner car, as well. Those who are particularly concerned can also call Mazda roadside assistance to have their vehicle delivered for the check and possible repair. Related Video: Mazda Issues Stop Sale and Stop Delivery for Mazda3 Fuel Tank Recall WASHINGTON, DC (October 2, 2015) – Mazda Motor Corporation will conduct a Safety and Emission Recall Campaign for certain 2015-2016 Mazda3 vehicles (built from May 21, 2015 through August 24, 2015), which could have a safety-related problem. A defect in the fuel shut-off valve may allow fuel to flow from the fuel tank into the charcoal emissions canister. With this condition, the check engine light may illuminate, and if the fuel exceeds the canister capacity, fuel leakage could occur, increasing the risk of a fire and/or engine stalling. Approximately 14,270 vehicles in the U.S. and 136 vehicles in Puerto Rico are affected. Owners of subject vehicles will be notified by mail in early October. They will be informed to bring their vehicle to the nearest Mazda dealer as soon as possible. Dealers will inspect the fuel tank to determine if the defect exists on the vehicle. If the defect exists, the dealer will replace the fuel tank and charcoal canister at no cost to the customer. A rental or loaner vehicle will be provided at no cost to the owner, until the vehicle is repaired for this concern. If there are no concerns, the vehicle will be returned to the customer. Should a customer not want to drive the vehicle to the dealership, they may contact Mazda's 24-hour Roadside Assistance service at 800-866-1998 and have the vehicle picked up and delivered to the dealership. There have been no reports of accidents or injury related to this issue.

2018 L.A. Auto Show: 5-plus takeaways on Jeep, Honda, Porsche and more

The 2018 L.A. Auto Show is making a strong case that auto shows aren't dead. Carmakers are ladling out sports cars and SUVs featuring serious style and performance in Los Angeles, and it's a feast for the senses. We're talking the new Porsche 911, the long-awaited Jeep Gladiator and the stylish Mazda3. It's the best car show with the most important reveals since the 2018 Detroit Auto Show kicked off the year. Here are some quick reactions: The 2019 Jeep Gladiator is a rock star When the story went live on Autoblog, our traffic went straight up. I've literally never seen the graph go straight up. So yeah, you guys seem to like it. I do, too. It's everything I want in a vehicle, including enough of a retro feel that it satisfies my cravings for an old Cherokee XJ. It's more capable and likely more expensive than I originally anticipated, but Jeep is going to have to expand its Toledo factory to keep up with demand. Don't be fooled by whatever the politicians say when that happens. It's because people like Jeeps and pickups, and this is the hero sandwich of all of that. I'd likely go with the 3.6-liter and a manual transmission if I were buying a Gladiator, but the diesel is compelling, too. Gladiator is a great name, drenched in history. I like it better than Scrambler, which never felt right to me. Only issue: It's a little over-the-top. Imagine this conversation: "So, ready to go to Panera?" "Sure, let's take the Gladiator." I mean, it's a bit much to refer to your personal vehicle as the Gladiator. Unless Russell Crowe is driving it. Then it's fine. The 2020 Porsche 911 is conservatively brilliant Every time I drive a 718 Cayman, Jaguar F-Type or another 911 challenger, I wonder if the 911 may be over the hill. It's not. And it likely never will be. This latest generation, dubbed 992 in Porsche-speak, stayed the course. The back takes some Mission E stylings that give the 911 a more modern feel. The flat six gets a little more power. The digital-heavy interior looks futuristic and slick. But overall, it's a blocking-and-tackling update that should satisfy the purists and maybe draw in a few new Porsche fans. It's the right time for the 2019 Honda Passport This slots between the Honda CR-V and the Honda Pilot. That's serious segmentation, but it's another crossover, and it's undoubtedly what the people want.