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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

Recharge Wrap-up: Shift to offer Teslas for Hire, Model S P85D beats Ferrari in drag race

A company called Shift plans to provide bikes and EVs for hire. Based in Las Vegas, NV, Shift will provide chauffeured ride services like Uber, but will also include a car- and bike-sharing service that delivers the desired wheels to the customer. Shift's fleet will include EVs like the Smart Fortwo Electric Drive and the Tesla Model S. Shift also promises that you will, "Be on your way within five minutes," which is a pretty tall order. Shift is scheduled to be available to members beginning this fall. Read more at The Car Connection. Nissan UK has confirmed the price of replacement batteries for the Leaf. UK drivers will be able to buy new batteries for 4,920 pounds (or about $7,738). That's considerably more than the price of $5,499 for US customers. Customers get 1,000 pounds back when they exchange their old battery. The original battery is covered under a five-year, 60,000-mile warranty, and most owners will never need to replace it. According to Nissan, only three replacement batteries have been sold out of 30,000 Leafs sold in Europe. Read more at Autocar. The Tesla Model S P85D walloped a Ferrari in an impromptu drag race video. The Ferrari driver pulls up alongside the Tesla and asks, "What you got in there?" before challenging him to a race. The Ferrari gets a head start, but the Tesla pulls out ahead quickly. The video also gets the reactions of some passengers to the car's mighty acceleration. See the video below and read the account of a drag race against a Lamborghini Aventador at Car Throttle. Australian website Drive has chosen their Cars of the Year in various categories. The Tesla Model S was a carryover winner for Luxury Car Over $80,000, but the Mercedes-Benz C200 narrowly overtook it to be crowned the overall winner. Regarding the Model S, one judge says, "This makes every other EV look at least a generation behind." The main thing that held the Tesla back from winning outright was the near-term lack of charging infrastructure. The judges did note Tesla's plans to build a network of Superchargers in Australia, but also pointed out that those plans exclude much of the country so far. See the video below and read more at Drive. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

2015 Nissan GT-R Nismo to hit 60 mph in 2 seconds?

Here's your daily dose of incredulity - AutoExpress is reporting the 2015 Nissan GT-R Nismo will hit 60 miles per hour in two seconds. Okay. The report comes from an unnamed source that AE spoke with at the Goodwood Festival of Speed, and would mean that the GT-R Nismo, a car that will likely sit below $150,000, will be able to outsprint (over short distances) a 1200-horsepower, $2.58-million Bugatti Veyron Super Sport.
Citing a more potent version of the GT-R's twin-turbocharged V-6 along with a healthy drop in weight, AutoExpress says that the performance is the result of the same group that helped develop the Juke Nismo, Williams Advanced Engineering. An unnamed engineer for Williams (it's not made clear if this is the same source from Goodwood) notes that there are improvements to be had "even with a car like the GT-R."
As exciting as the GT-R Nismo is going to be, we're having a hard time accepting that it will be able to hit 60 in two seconds flat, at least on street tires. What do you think? Have your say in Comments.