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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

EZ-Charge program will get rolled out for all vehicles [UPDATE]

UPDATE: It appears that Chargepoint has pulled out of the program. It looks like a myriad of vehicles will be eligible for the single-card recharging program under NRG Energy's NRG eVgo division. The EZ-Charge platform that Nissan said last month would allow Leaf owners to use multiple vehicle recharging networks with a single card will soon be offered to other plug-in vehicles. eVgo will start sending out EZ-Charge cards this summer to various markets in Northern and Southern California and Texas as well as the Pacific Northwest, Phoenix, Nashville and Washington, DC. EZ-Charge uses a single card that is good for eVgo stations as well as stations within the ChargePoint, Blink and AeroVironment networks. It will debut in 10 EZ-Charge markets on July 1. By mid-2015, 15 more markets will be added. Nissan announced the 'No Charge to Charge' program last month at the New York Auto Show. Nissan said at the time that Leaf buyers would get two years of free charging, but individual charging sessions were limited to 30 minutes at CHAdeMO stations and an hour at the more-common Level 2 stations. The automaker also estimated that the 25 markets included by next year account for more than 80 percent of US Leaf sales. Take a look at NRG's press release below. NRG eVgo Introduces New Convenience to Electric Vehicle Charging First-of-Its-Kind EZ-Charge All-Access Card gives EV drivers convenience to use chargers from multiple charging providers PRINCETON, N.J.--(BUSINESS WIRE)--This summer, NRG eVgo, a subsidiary of NRG Energy, Inc. (NYSE:NRG), will roll out the EZ-Charge (SM) platform, a first-of-its-kind initiative that will offer electric vehicle (EV) drivers the ability to access multiple EV charging networks with a single all-access card. "For too long, EV drivers have been limited to only the chargers that were in their network meaning they might drive past a number of charging stations in other company's networks before they could get to one they could use with their current provider" The EZ-Charge platform will enable drivers of any electric car make or model to carry a single access card for charging on multiple networks, much like consumers today carry a single credit card to access multiple retailers.

Only 3 new cars cost under $20,000. Here’s what you should buy used instead

Looks like some more people have realized something we pointed out late last year. There are only three new cars under the magic $20,000 price limit currently for sale in the United States. Those three vehicles are the Nissan Versa with a starting price of $16,925 (all prices here include destination fee), the Kia Rio at $17,390 and the Mitsubishi Mirage at $17,650. Should push come to shove, so to speak, we'd probably pick the Nissan as our top choice among those three due to its practicality, comfort and overall polish when compared to its similarly priced peers. But really, as we've suggested before, there are better options. Our top pick for a used vehicle under $20,000 remains the Chevy Volt. It's stylish, comfortable, practical and, above all else, efficient, assuming you can plug it in at home. If you don't have access to a plug at home, you'll likely be able to find a very gently used car for the same price as one of the budget options above. We'd check out the Honda Fit, Kia Soul, Subaru Impreza, Toyota Corolla hatchback and Volkswagen Jetta from the  model years and aim for something with under 20,000 miles and with a year or two left of its factory warranty. A quick inventory search shows that some of those cars, notably the Impreza and Jetta, can even be found Certified Pre Owned in most parts of the country. For a more thorough breakdown of some of the available used-car options we'd recommend, check out our guide to the Best Cars Under $20,000. For what it's worth, with the average new car transaction price hovering alarmingly close to $50,000, we wouldn't expect to see any more options coming any time soon for well under half that sum. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Green Kia Mitsubishi Nissan Car Buying Used Car Buying Sedan