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A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show

Trucks, SUVs — and Camry — shine in mixed U.S. January vehicle sales

DETROIT — Automakers posted mixed U.S. new vehicle sales data for January, with American consumers continuing to abandon passenger cars for the larger pickup trucks, SUVs and crossover models that manufacturers also love because they are far more profitable. Total industry auto sales for the month rose 1 percent versus January 2016. According to Autodata Corp, which tracks industry sales, the seasonally adjusted annualized rate (SAAR) of U.S. car and light truck sales in January fell to 17.12 million units from 17.44 million a year earlier. Analysts polled by Reuters had expected a January SAAR of 17.2 million units. U.S. auto industry sales fell 2 percent in 2017 to 17.23 million vehicles after hitting a record high in 2016 and are expected to drop further in 2018 despite a solid economy. Interest rates are rising and around 4 million late-model used cars will return to dealer lots this year to compete with more expensive new ones. Automakers have used consumer discounts to boost sales, a growing concern for observers who say this undermines resale values and profits. Discounts declined in January, but remained above 10 percent of manufacturers' recommended prices. ""I think the industry has accepted that (sales) volumes will fall somewhat in 2018 ... and I don't think the industry is going to go over the cliff with insane incentives," Mike Jackson, chief executive officer of AutoNation Inc, told Reuters after his company, the largest U.S. auto retail chain, posted a higher quarterly net profit. Mark Wakefield, head of the North American automotive practice for consultancy AlixPartners, had a gloomier perspective. The industry's less-than-stellar sales performance for January showed "we are now past the peak," he said. "Automakers are now selling the deal instead of the vehicle," he said. "That's a tough spot to be in because that treadmill is hard to get off once you're on it." General Motors January sales rose 1.3 percent, driven by a 16 percent rise in fleet sales. Sales to consumers fell 2.4 percent. GM posted strong gains for models such as the Silverado pickup truck and Equinox crossover model, while its passenger cars continued to struggle. Ford The Blue Oval posted a 6.6 percent sales decline for January, with retail sales down 4.3 percent. Sales of Ford's F-Series pickup trucks - America's best-selling vehicle brand for decades — rose 1.6 percent. Passenger cars were down more than 23 percent.

Junkyard Gem: 1996 Nissan Quest XE with 338,549 miles

When I hit the junkyard, I always look for vehicles with impressive final figures showing on their odometers. I find so many Hondas and Toyotas with better than 300,000 miles that I don't consider them especially noteworthy (the exception being super-low-spec cheap models, such as a Tercel or Civic VX), and it goes without saying that the bar is quite high for Mercedes-Benzes as well. It has been surprisingly difficult to find discarded Nissans that made it past the 300k mark; today's Junkyard Gem is just the fourth I've documented. The highest-mile junked Nissan I'd found prior to today's minivan is a 1994 Maxima with 364,238 miles, followed by a 1987 Maxima with 341,176 miles and a 1986 200SX with 309,222 miles. Keep in mind that Nissan didn't go to six-digit odometers on most of its US-market cars until the early 1980s, and then went to tough-to-read-in-the-junkyard electronic odometers in the early 2000s; this means the pool of potential high-mile Nissans is limited to about the 1983-2000 range of model years. Ford has just as much right to claim credit to this van's impressive mile total as does Nissan, since the Quest was a collaboration between Ford and Nissan that also produced the Mercury Villager; this van was built by Ford at the Ohio Assembly plant. The Quest/Villager platform was derived from the Maxima's, and the engine is pure Nissan: a 3.0-liter VG30 V6 rated at 151 horsepower. The only transmission available in the first-generation (1993-1999) Quest/Villager was a four-speed automatic. This one appears to have been sold new at Landrum Nissan in Pueblo. The rear glass has been painted flat black, possibly to keep prying eyes from seeing valuable cargo. The rear seats are long gone, so this van probably hauled cargo for much of its long life. The front interior seems to be in good shape. Why is this van here? There's body damage on the left rear and right front, suggesting a crash that may have bent the suspension past the worth-fixing threshold. Perhaps the crinkled metal just made this van too unsightly, or maybe some powertrain problem was the culprit. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. It's time to expect more from a minivan. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. It's all fun and games until the toddler takes the wheel.