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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 Prius sales could come up short in 2013

A Toyota executive has said that the automaker's hybrid Prius model may not reach its 2013 goal of selling 250,000 units in the US marketplace. Bill Fay, group vice president for Toyota's US sales, told Reuters, "The 240,000 to 250,000 range is kind of where we're settling our sights for the Prius family."
The first-generation Prius, a five-passenger model, was introduced to the States in 2001 (its arrival made it the second mass-produced hybrid, after the two-seat Honda Insight). The second-generation model arrived in 2004, followed by the current third-generation design that arrived for the 2010 model year. The automaker has subsequently added the Prius V, a hatchback wagon (shown above) and the Prius C, a subcompact hatchback. As of March, 2013, cumulative worldwide sales of the Prius had reached 3.67 million units.
Last year, Toyota sold 236,659 Prius models in the US. However, sales of the model have fallen 5.1 percent in the first six months of 2013. In response, the automaker has boosted its marketing for the model, and the promotions are expected to continue through at least July.

Toyota i-ROAD leans its way into the city [w/video]

According to Toyota, the "i-ROAD takes the company closer to its goal of creating the ultimate range of eco cars." As you're surely aware, that range of eco cars includes the enormously successful Prius family, but this new machine is nothing like the hybrid hatchback. And it's not even a car - Toyota calls the i-ROAD a Personal Mobility Vehicle.
Toyota's i-ROAD Concept, which debuts at this week's Geneva Motor Show, is adorned with just three wheels, meaning it's just as much a motorcycle as it is a car, and the driver and passenger sit in tandem style instead of side-by-side. This arrangement allows for a very thin 850mm width, which is about the same as a large motorcycle. Because the cockpit is enclosed, the occupants don't need helmets, nor are they open to the elements outside.
Also like a traditional two-wheeler, the i-ROAD tilts through the turns and when driving on uneven surfaces. Toyota says its computer-controlled Active Lean technology automatically balances the vehicle with no input from the driver.