2009 Nissan Altima on 2040-cars

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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:

2018 Honda Accord charges into slumping sedan market

DETROIT - Honda on Friday revealed its newest-generation Accord, one of four re-engineered midsize sedans that Asian automakers are betting on to win market share as Detroit automakers shift focus to SUVs, crossovers, and pickup trucks. The new Accord, like rival Toyota's all-new Camry arriving this month, offers major improvements in fuel economy, technology, styling and safety. Honda declined to discuss details ahead of Friday's event in Detroit. The Accord and Camry are pillars of their manufacturers' US businesses, each selling well over 300,000 vehicles a year. In the coming months, Nissan is expected to launch a new Altima midsize sedan, and Hyundai will launch a new Sonata. Both are popular marques that will be promoted heavily. "There has been no new news on the midsize sedan side for three years, and we think this is a great opportunity to bring attention back to the segment," said Jack Hollis, Toyota's head of marketing for North America. Year to date, US passenger car sales are down 11.4 percent, and sales of midsize sedans are down 14.2 percent. Still, Americans bought 7.1 million sedans in 2016. With General Motors and Ford cutting sedan production, and Fiat Chrysler Automobiles abandoning the segment, Honda and its Asian rivals could boost sales with updated models, dealers said. "They could take share from other brands, which is traditionally what happens when a new product is launched," said Pete DeLongchamps, vice president for manufacturer relations at Group 1 Automotive Inc, the third-largest US auto dealer group. "NOT FINDING A PLACE WITH CONSUMERS" The Accord for years was Honda's top-selling model in the United States. Within the past year, US sales of the Honda CR-V have eclipsed the aging Accord, and Honda has expanded production capacity for the compact crossover. Passenger-car sales have steadily declined since 2012, when they made up 51.2 percent of the US market. Sedans have sagged to a 38.1 percent share in the first half of this year. IHS Markit said US consumer loyalty to SUVs and pickup trucks has risen since 2012, but declined for sedans. The new Accord and Camry "may stem the decline," said IHS Markit's Tom Libby. "I don't think they will cause a marked reverse." Improvements to the Accord should boost sales at Galpin Honda in San Fernando, California, general manager Ed Hartoonian said.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.