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Hello, Siri? Please don't crash the car

Hands on the wheel and eyes on the road? You could still be distracted while driving. Voice-recognition software that many automakers tout as a safer alternative to handheld devices can still divert drivers' attention, a new study published by AAA found. Researchers noted that workload ratings were the highest on their scales when participants in the study used Siri. The technology is alluring because it allows drivers to do things like change the radio station or compose a text message without removing their hands from the wheel or their gaze from the road. But many of those tasks increase a driver's cognitive workload. Depending on the situation, that can be dangerous. "It's especially problematic, because you can be distracted and not know it," J. Peter Kissinger, president of the AAA Foundation for Traffic Safety, told Autoblog. "That's the nature of mental distraction. It's hard to appreciate. ... Often, you don't know you're distracted until it's too late." There's significant variation in the results of the study. Simple, single-task car commands for operations like changing the radio station caused minimal increases in workload, about the same as listening to an audio book. Composing information using speech-to-text technology was more burdensome, and using menu-based functions caused a high level of cognitive workload. Siri-based interactions posed the highest levels of distraction, according to AAA. Researchers noted that workload ratings were the highest on their scales when participants in the study used Siri, and two of the three simulator crashes they observed during the study of 36 participants came while the subjects were interacting with Siri. The subjects weren't looking at nor making contact with their iPhones during these interactions. "Common issues involved inconsistencies in which Siri would produce different responses to seemingly identical commands," the researchers wrote. "In other circumstances, Siri required exact phrases to accomplish specific tasks and subtle deviations from that phrasing would result in a failure. ... Some participants also reported frustration with Siri's occasional sarcasm and wit." It wasn't just the complexity of the task that caused variations in level of distraction – the variations could also be dependent on the particular make and model of the car being tested.

Toyota's hydrogen fuel cell Mirai isn't good enough to be a Lexus

It looks like the first hydrogen fuel-cell vehicle from Lexus will be faster than previously advertised, but it will get to the market slower than expected. It's all part of the paradox involved with Toyota looking to broaden its fuel-cell technology beyond the Mirai. Either way, the first Lexus fuel-cell vehicle is slated to start sales by the end of the decade, said Auto Express, citing comments from Alain Uyttenhoven, head of Lexus Europe. Uyttenhoven noted that it'd take an SUV to provide enough space to accommodate the packaging for the Lexus fuel cell powertrain. That comment may imply that the hydrogen-fueled powertrain from Lexus will offer similar performance to that of the Lexus RX450h hybrid SUV. That model delivers 300 horsepower and boasts a 0 to 60 mile-per-hour time of about seven seconds. Such a mill would be a departure from what we'd previously reported on Toyota's plans to expand its fuel-cell technology to its Lexus luxury badge. With Toyota believed to be planning to unveil as many as three fuel-cell models in time for the 2020 Summer Olympics in Tokyo, the Japanese automaker said early last year that it may have a Lexus fuel-cell vehicle available as soon as 2017, while reports suggesting the model would be a Lexus LS-based sedan. Additionally, the Mirai's fuel-cell powertrain had been believed to be the platform for the proposed Lexus fuel cell from the moment that model started sales in California last year. Apparently, though, the Mirai's 152-horsepower powertrain, coupled with a full-tank range that would be about 20 percent less than the 300-mile Mirai, isn't up to snuff for Lexus duty. Related Video: News Source: Auto Express via Hybrid CarsImage Credit: Jonathon Ramsey / AOL Green Lexus Toyota Hydrogen Cars mirai

Toyota may put Mirai hydrogen fuel cell powertrain into a Lexus

Toyota is hoping to define the world of hydrogen fuel cell vehicles with its uniquely styled Mirai sedan in a fashion similar to the way the Prius pops into people's minds when they think of a hybrid. The Japanese automaker believes it can sell about 700 FCEVs worldwide in the first year alone and build rapidly from there to an estimated 3,000 sales in the US by 2017. Of course, not everyone is completely enamored with the Mirai's design. Toyota is rumored to have an alternative in the works to quell some of those naysayers, possibly taking flagship form with a new Lexus LS powered by fuel-cell tech. The LS FCEV could be unveiled by 2017 to sit at the very top of brand's lineup. According to an inside source speaking to the Australian website Motoring, the front end would feature larger air intakes to cool the electrical components. The fuel cell would reportedly be positioned under the front seat, and the hydrogen tanks would be located under and behind the rear seat. Somehow, Motoring claims that all of this might be lighter than the current LS600hL hybrid, to the tune about 440 pounds. The model is also claimed to offer a range of about 239 miles, just a bit shy of the Mirai's roughly 300 miles. Assuming this vehicle actually exists, the cost for buyers of this flagship would almost certainly ring up at more than the LS600hL's $120,440 base price. Autoblog has reached out to Toyota for any further info about this rumor, one way or the other. If we hear back, we'll update this story with the details. Featured Gallery 2016 Toyota Mirai View 15 Photos News Source: MotoringImage Credit: Toyota Green Rumormill Lexus Toyota Alternative Fuels Hybrid Luxury Sedan lexus ls toyota mirai rumor fcev Lexus LS600h