11 Tundra Ltd 4x4, Navigation, Sunroof, Bedliner & Cover, Warranty, Pristine! on 2040-cars

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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 TRD Pro Chase Trucks are ready to hit the desert at SEMA

Toyota marks the 35th anniversary of its Toyota Racing Development performance arm this year, and the division is celebrating at this year's SEMA Show with a quartet of tuned off-roaders based on on the 4Runner, Tacoma and Tundra that look more than ready to go just about anywhere.
All four of them will take part in this year's Baja 1000 race, but only the Tundra (far left in the above photo) is actually competing. The other three will be there to act as support vehicles.
Inspired by the production TRD Pro Series trucks, the 4Runner, Tacoma and Tundra are prepared by off-road fabricator N-Fab with a mix of TRD and the company's own parts to be able to take whatever the grueling, 1,000-mile can throw at them. The trio is fettled with extra communications equipment, GPS, additional lights and all sorts of body and suspension modifications to help them survive the ordeal.

400-hp Toyota Hybrid-R Concept gets second teaser

Toyota has released a second teaser of its Hybrid-R Concept, along with an estimation of the show car's power output. Using technology that's "similar to that used by Toyota Racing's TS030 Hybrid race car," the concept is expected to deliver over 400 horsepower.
The press release also mentions that the new concept is based on a current production model. While it's difficult to tell from the sole teaser image of the car's body, rumors are flying that it's related to the Yaris. If that's the case, though, it's difficult to know what to make of this concept. The teaser image is quite dark, but we played around with the exposure and came up with an image that reveals more details about the new concept. Take a look at the related gallery, below, to see the high-exposure image. We'll find out for certain what the Hybrid-R is in a few weeks at the Frankfurt Motor Show. Let us know what you think Toyota's newest concept is in the comments.