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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.

2015 Toyota Camry ushers in 'sweeping redesign' [w/poll]

With a dozen years atop the nation's best-selling car charts, you might think that there wouldn't be a lot of incentive for Toyota to rework its Camry, particularly so early in the life of the current model. But despite its unassailable sales totals, the midsize sedan has come in for substantial criticism for its milquetoast dynamics, piecemeal interiors and bland design.
As part of CEO Akio Toyoda's mantra to build more exciting cars, the 2015 Camry has arrived with a fresh new look and content that goes far beyond the Japanese automaker's typically slight mid-cycle redesigns. Featuring some 2,000 new parts, the 2015 Camry casts a 1.8-inch longer shadow and stretches across a widened track (0.4 inches). And it won't be just the widened track that should help deliver a more dynamic performance - Toyota is citing a stiffer chassis thanks to additional spot welds along with a rejiggered suspension, retuned electric power steering and a new two-stage brake booster for improved braking feel.
A new XSE trim promises the sportiest performance yet, including model-specific shock absorbers and springs, stiffer bushings, unique stability control programming and 18-inch wheels to go along with a unique front end treatment featuring mesh grille inserts and a revised fascia.

Toyota mulling Cummins diesel for Tundra?

When Bloomberg spoke to Toyota USA Sales CEO Kazua Ohara recently, we highlighted his comments on the possible return of the Toyota Supra. However, the interview started with Ohara discussing the Tundra, and how it would take time to pinpoint and hone the pickup truck's brand image in the minds of consumers. That effort could get a boost, with a report in Edmunds saying that Toyota is "evaluating" the addition of a Cummins turbodiesel to the Tundra's engine options.
The Cummins powerplant is one of two options for the moment, the other being a hybrid powertrain. If the oil-burner got the thumbs-up, Toyota would follow the recent example of Nissan, which announced it would put a Cummins turbodiesel into its 2015 Titan. While the two Japanese companies make a closer comparison since they're both talking about Cummins applications in light-duty trucks, if it happens, it could be seen as further diluting the once-exclusive tie-up that Ram trucks has had with Cummins even though Ram has used Cummins in its heavy-duty truck.
Toyota hasn't said when it will decide on which direction to take, but either will be a move for the better in the view of segment watchers; PickupTrucks.com said the first of its top-five fixes for the Tundra would be a better engine, perhaps a diesel-electric hybrid from Toyota's Hino unit. Cummins told Edmunds it can supply a second manufacturer with the 5.0-liter diesel that Nissan will be using, so we wouldn't be surprised to see it end up in a Toyota or somewhere else.