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Autoblog Podcast #317

Mitsubishi Mirage, Toyota thinks of beefing up US production, Marchionne on Alfa, Dart and minivans, Ford Atlas concept, Honda Gear concept
Episode #317 of the Autoblog Podcast is here, and this week, Dan Roth, Jeff Ross and Michael Harley bookend the other podcast topics with a pair from the Montreal Auto Show, the Mitsubishi Mirage and Honda Gear concept, and in between we talk about Toyota building all its US-market cars stateside, Hyundai building a Nurburgring test facility, Sergio Marchionne's latest words about Alfa Romeo, Dodge Dart powertrains and the future of Chrysler vans. Some chatter about the Ford Atlas concept finishes up the meat of the 'cast and then we wrap with your questions. For those of you who hung with us live on our UStream channel, thanks for taking the time. Keep reading for our Q&A module for you to scroll through and follow along, too. Thanks for listening!
Autoblog Podcast #317:

Toyota expands airbag recall to 2.27M vehicles worldwide

Was your Toyota inspected under the company's recall campaign for faulty airbag inflators last year? You might have another trip ahead to have it repaired again. The automotive giant says that it found "the involved serial numbers provided by the supplier were incomplete, and did not include all of the potentially involved inflators," according to its official announcement. That means more replacements are needed.
Toyota's April 2013 inflator recall covered the Corolla, Matrix and Tundra from the 2003 and 2004 model years, the Sequoia from 2002 to 2004 and the Lexus SC 430 from 2002 to 2004. At the time, the company said it would need to inspect about 510,000 vehicles in the US but only expected to replace around 170,000 inflators.
However, the latest announcement increases that figure to about 766,300 vehicles in the US. Toyota spokesperson Cindy Knight told Autoblog that the new amount is the combination of owners who need to have their vehicle looked at again and those who didn't come in for the initial recall. The company learned about the problem when Takata, the supplier, provided it with an improved list of the faulty part's serial numbers. According to The Detroit News, the latest recall affects about 2.27 million vehicles from them worldwide. Knight said owners would receive notification of the problem around the end of the month but repairs would come in phases because the automaker doesn't have all of the necessary parts at the moment.

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.