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Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.

Toyota working on cars that hover above the roadway

Toyota is one of the largest automakers in the world, but it's not content simply building and selling conventional cars - it's been at the forefront of numerous advancements in ground transportation. It is widely credited with advancing the cause of hybrid propulsion, and alongside Audi and Google, is among the first automakers seriously testing self-driving cars. We could go on, but the news here is that Toyota is reportedly developing vehicles that hover above the road surface instead of rolling along it.
The news comes from Hiroyoshi Yoshiki, one of Toyota's tech gurus, who revealed at Bloomberg's Next Big Thing summer in San Francisco that the company is working on hovering cars - ones that travel just above the road surface, but don't actually fly in three-dimension space.
According to The Verge, a spin-off of our own sister-site Engadget, Yoshiki refused to elaborate on what the project entails and how far along it is. He was speaking along acting NHTSA chief David Friedman, who lauded such advancements as a "great taste of innovations to come," but stressed the significance of more concrete improvements to conventional automobiles - like inter-car communications to keep vehicles from colliding on the highway - as more relevant to today's industry.

Toyota recalling 615k Sienna models over rollaway risk

Toyota has announced a recall affecting approximately 615,000 Sienna minivans due to a possible rollaway risk. All of the vehicles in question are from the 2004, 2005, 2007, 2008 and 2009 model years.
In an official statement, the automaker states that the problem stems from the vehicle's shift lever assembly. "Because of the potential for damage to the shift lock solenoid installed in involved vehicles, there is a possibility that the shift lever could be moved out of the 'P' position without the driver depressing the brake pedal," Toyota said. Because of this fault, the affected Sienna models could roll away without warning, increasing the risk for a crash.
Owners will be notified via first class mail, and the affected Sienna models can be taken to Toyota dealerships to have the shift lock solenoid replaced with a new one. Have a look below for the automaker's official release.