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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.

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.

Editors' Picks November 2023: Toyota Grand Highlander, Buick Envista and some lovely luxury vehicles

It's been a month since we served you with the full lot of Autoblog Editors' Picks, and that master list is going to continue to grow as more new cars enter the market. For November 2023, we have a trio of SUVs coming in at various sizes and price points including the Buick Envista, Toyota Grand Highlander and Mercedes-Benz GLS. And if you're looking for a convertible sports car, the BMW Z4 is one that should make your shortlist, as it finds its way into this month's of Editors' Picks, as well. In case you missed previous Editors' Picks posts, here’s a quick refresher on whatÂ’s going on here. We rate all the new cars we drive with a 1-10 score. Cars that are exemplary in their respective segments get an EditorsÂ’ Pick designation. Those are the ones weÂ’d recommend to our friends, family and anybody whoÂ’s curious and asks the question. The list that youÂ’ll find below consists of every car we rated in November that earned an EditorsÂ’ Pick. 2024 Toyota Grand Highlander 2024 Toyota Grand Highlander Limited Hybrid Max View 25 Photos Quick take: The Hybrid Max is the one to get, but the Grand Highlander comes highly recommended for its added space, nicer interior and fuel efficient powertrains. Score: 7 What it competes with: Kia Telluride, Jeep Grand Cherokee L, Chevy Traverse, Honda Pilot, Subaru Ascent, Ford Explorer, Toyota Highlander, Mazda CX-9, Kia Sorento, Buick Enclave, Nissan Pathfinder, VW Atlas, Mazda CX-90 Pros: Two hybrid powertrain options; exceptional cargo space; usable third row; refined and quiet ride. Cons: Expensive for the segment; the lesser hybrid powertrain is noisy and slow. From the editors: Senior Editor, Electric, John Beltz Snyder — "The Grand Highlander is a nice alternative to the standard Highlander for the Toyota faithful for its usable third row. The choice of powertrains is a huge boon, too, whether you want a fuel-sipping hybrid, or solid gas engine or a more robust hybrid with extra performance. YouÂ’re just going to have to pay a little more for it all." In-depth analysis: 2024 Toyota Grand Highlander Review: A strong, new three-row contender   2024 Buick Envista 2024 Buick Envista Sport Touring front three quarter View 19 Photos Quick take: The Envista is one of our top subcompact SUV picks. It packs tremendous value into a compelling design that looks far more expensive than it is. A homerun for Buick.