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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

Nissan exec talks about smaller Leaf, and maybe a CUV EV as well

The Renault Zoe is a popular electric vehicle in Europe, and it gives buyers on the continent a zero-emissions option that's smaller than the Nissan Leaf. Here in the US, Nissan only offers its one all-electric passenger vehicle, but the company might be taking a page from its corporate partner to offer a smaller Leaf in the near future. According to Gareth Dunsmore, Nissan EV European head, Nissan is thinking about both a smaller EV based on the Zoe and larger, all-electric SUV/CUV. "We've invested $5.4 billion in electric cars such as the Leaf, so we need to ensure we're satisfying as many types of customer as possible," he said. "In Europe, that could mean looking towards B-segment hatches and SUVs or crossovers," according to Auto Express. "If we look towards crossovers or the B-segment for the next car, those could make perfect sense." As for what we actually know about the next-gen Leaf, details are scarce. We did get confirmation that a 200-mile range update is in the works, but information on timing and other details are still something we're waiting for. Let's throw the idea of a smaller Leaf into the rumormill and see when Nissan starts talking. The gallery above shows off the Nissan IDS concept, which was shown at the Tokyo Motor Show last year. Related Video: Featured Gallery Nissan IDS Concept: Tokyo 2015 News Source: Auto ExpressImage Credit: Copyright 2016 Sebastian Blanco / AOL Green Nissan Renault Crossover SUV Electric renault zoe nissan ids

Ford Mustang chief engineer, mid-engine Corvette | Autoblog Podcast #488

Note: There were some technical difficulties that prevented some of you from downloading this week's podcast. The player and link below should be working now, and the file has reached iTunes and other feeds as well. Thanks to everyone who wrote in to let us know of the issues! On the podcast this week, we have some questions for Ford Chief Engineer Carl Widman. Plus, Associate Editor Reese Counts joins Mike Austin to talk about the latest news, most notably the spy photos of the upcoming mid-engine Corvette. We also chat about the Jaguar F-Type Coupe, the Nissan Armada, and why 0-60 mph is a stupid performance figure. And, of course, we get into some Spend My Money advice, telling strangers what car to buy. And new this week is a cost-no-object what-cars-would-you-buy game. The rundown is below. And don't forget to send us your questions, money-spend or otherwise, to podcast at autoblog dot com. Autoblog Podcast #488 The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics and stories we mention Mid-engine Chevrolet Corvette spied Chevy Bolt EV comes with 238 miles of range Ford will sell self-driving cars by 2025 Jaguar F-Type Coupe 2017 Nissan Armada (yes, Mike knows it's not a Patrol) Ford Mustang Chief Engineer Carl Widman interview Spend My Money - we give purchase advice Why 0–60 mph is a stupid performance test Rundown Intro - 00:00 The news - 03:30 What we've been driving - 16:20 Carl Widman - 26:44 Spend my money - 37:03 New fun game - 51:48 0–60 mph is overrated - 56:50 Total Duration: 1:04:57 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Feedback Email – Podcast at Autoblog dot com Review the show in iTunes Podcasts Chevrolet Ford Jaguar Nissan Car Buying nissan armada mid-engine corvette jaguar f-type coupe

Mitsubishi Motors halts some SUV sales in Japan as MPG scandal grows

Mitsubishi's fuel-economy scandal is going from bad to worse. First, the Japanese automaker claimed it lied about the fuel economy for a few kei cars, then it claimed fuel economy tests for as far back as 1991 could reveal mile-per-gallon figures that were tampered with. In May the automaker, admitted that every single vehicle it's sold in Japan could be affected by the fuel-economy scandal. Now, the Japanese automaker revealed that more of its vehicles were involved in the fuel-economy cheating scandal – and one of them is sold in the US. After completing its investigation into the automaker's fuel-economy scandal, Japan's Transport Ministry found that Mitsubishi overstated the fuel economy for eight more vehicles in marketing brochures, one of which is sold as the Outlander Sport in the US, reports Automotive News. The Transport Ministry ordered Mitsubishi to stop domestic sales of the models, which include the Pajero, Outlander, and RVR SUV (known as the Outlander Sport in the US). The latest finding adds to four kei cars that were previously noted for having overstated fuel economy figures earlier this year. Japan's sixth-largest automaker is having a hard time recuperating since the scandal broke earlier this April. The initial scandal led to the automaker suspending its sales, which caused a large dip in the automaker's market value. The scandal required Mitsubishi to seek financial assistance from Nissan, which agreed to buy a controlling 34-percent stake for $2.2 billion. Investigators hired by Mitsubishi to look into the automaker's overstated fuel economy figures revealed the company's "corporate culture" as the issue. More specifically, the investigators founds the company's pressure to improve fuel-efficiency figures, a lack of unity between divisions, and an unwillingness to accept fuel economy shortfalls as the reason for falsifying its vehicles' mpg figures. Mitsubishi is expected to compensate Japanese owners for the overstated fuel economy figures, which would result in a massive loss for the automaker. The company is expected to post a net loss of roughly $1.4 billion this year, pushing Mitsubishi into the red for the first time in approximately eight years. Related Video: News Source: Automotive News-sub.req.Image Credit: Tomohiro Ohsumi / Bloomberg via Getty Images Government/Legal Green Mitsubishi Nissan Fuel Efficiency kei car scandal

Jeremy Clarkson names 10 worst cars for 2015 and 2016

When Jeremy Clarkson, outspoken automotive journalist, ex- Top Gear host, and co-host on The Grand Tour, drives a car he doesn't like he doesn't pull his punches. As Jezza harshly puts it, cars shouldn't just be a form of transportation. These 10 cars made Clarkson's "the terrible 10" list on his column in The Sunday Times for lacking imagination and not giving the journalist "the Fizz," which his list of top 10 cars did. In typical Clarkson fashion, the list is controversial. Some of the cars on Clarkson's list have received praise from other outlets, which shouldn't really come as a surprise since he usually goes against the majority's opinion. Nonetheless, there's at least one car that will catch you off guard. To get a glimpse at Clarkson's reviews and the entire list of cars, head over to his column in The Sunday Times. Vauxhall Astra SRi Nav Infiniti Q30 Premium Tech Skoda Superb SE L Executive Zenos E10 S Renault Kadjar Signature Nav BMW X1 xDRIVE25d SEAT Leon X-Perience SE Technology Nissan GT-R Track Edition Volkswagen Scirocco 2.0 TDi Hyundai i800 Related Video: Featured Gallery Jeremy Clarkson's Terrible 10 For 2015 and 2016 View 11 Photos News Source: The Sunday TimesImage Credit: Clive Brunskill / Getty Images Celebrities BMW Hyundai Infiniti Nissan Toyota Performance bmw x1 infiniti q30

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.

Nissan Truck-a-Palooza | Autoblog Podcast #483

Episode #483 of the Autoblog Podcast is here. This week, Dan Roth, Alex Kierstein, and Michael Austin talk about the jam-packed Autoblog Garage, Alex Kierstein's time with several new Nissan trucks including the 2017 Armada, and we wrap it up trying to spend your money. Check it out! Check out the rundown with times for topics, and thanks for listening! Autoblog Podcast #483 The video meant to be presented here is no longer available. Sorry for the inconvenience. Topics 2017 Nissan Armada In The Autoblog Garage 2016 Audi R8 V10 Plus 2016 Jaguar XJR 2016 Jaguar XE Diesel 2016 Jaguar F-Pace 2016 Chevrolet Cruze Premier 2016 Kia Sedona SXL 2017 Mitsubishi Mirage GT Hosts: Dan Roth, Michael Austin, Alex Kierstein Rundown Intro & Garage - 00:00 Nissan Trucks - 19:39 Q&A - 29:38 Total Duration: 40:19 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Feedback Email – Podcast at Autoblog dot com Review the show in iTunes Podcasts Audi Jaguar Mitsubishi Nissan

Investigators say Mitsubishi mpg scandal was 'collective failure'

Investigators hired by Mitsubishi Motors to probe why the Japanese automaker engaged in falsifying fuel-economy figures for the past quarter-century faulted the company's "corporate culture." Specifically, there was a lack of unity between divisions, company-wide pressure to boost fuel-efficiency numbers, and an unwillingness to accept fuel-economy shortfalls, Automotive News says, citing comments made by consultants who hired by the company to investigate the problems. Challenging management authority even if it was proper to do so was also frowned upon. One of the investigators called the scandal "a collective failure." Among other suggestions, the consultants recommended that Mitsubishi's vehicle-mileage certification be independent from research and development, that there's greater transparency overall, and that there's a more thorough understanding of laws. New shareholder Nissan may also invest in retooling Mitsubishi's R&D operations, and is sending one of its former executives, Mitsuhiko Yamashita, to Mitsubishi to try to prevent any sort of repeat problems. Mitsubishi joined a list of automakers including Volkswagen, Hyundai/Kia, and Ford that have been found in recent years to either mislead with its published fuel-efficiency figures or emissions-testing procedures. A Nissan spokesman declined to comment on the Mitsubishi report, according to Automotive News. The recommendation comes less than three months after the announcement that Nissan would help rescue Mitsubishi from its fuel-economy scandal by acquiring part of the company. Nissan agreed in May to pay $2.2 billion for a 34-percent stake in Mitsubishi, and said at the time that Mitsubishi would join the Renault-Nissan Alliance. Nissan also owns 15 percent of France-based Renault. That announcement came right after Mitsubishi's admission that it may have falsified fuel-economy data for every one of its vehicles made in Japan dating back to 1991. Related Video: News Source: Automotive NewsImage Credit: Tomohiro Ohsumi/Getty Images Green Mitsubishi Nissan Fuel Efficiency scandal diesel scandal

Nissan Leaf's lead over Renault Zoe narrows in Europe

The Nissan Leaf has seen its sales steadily decline in the US for a while now. Here, its been eclipsed by the second-generation Chevrolet Volt extended-range plug-in while people await the next-generation version of the all-electric Leaf. The EV may be starting to receive a similar response across the Pond. While the Leaf remains Europe's biggest-selling EV, that lead is eroding, as sales of the Renault Zoe are catching up, according to the European Alternative Fuels Observatory (EAFO). It's a good thing Nissan and Renault are sister companies. Through May, Nissan sold about 9,500 Leaf vehicles in Europe. The good news is that number is up 37 percent from a year earlier. There's disconcerting news, too, and that is that the Renault Zoe's sales have surged 60 percent this year to almost 9,400 units. So, for all we know, the Zoe may have caught up with the Leaf last month. Still, both models are outpacing demand for the Tesla Model S and Volkswagen e-Golf: the former's sales are little-changed this year, while the latter model's sales have dropped 34 percent. The BMW i3, Kia Soul EV, and Mercedes-Benz B250e all have had higher sales this year. As for plug-in hybrids, the Mitsubishi Outlander PHEV has maintained its substantial European lead, almost doubling sales of the Volkswagen Golf GTE and totaling almost 9,400 units sold through May. Meanwhile, the new Volvo XC90 PHEV has leapfrogged models such as the Volkswagen Passat GTE, Mercedes-Benz C350e, and Audi A3 e-Tron into third place behind the Mitsubishi and VW. Here in the US, Nissan Leaf sales through June fell 41 percent from a year earlier to about 5,800 units, while Chevrolet Volt sales have surged 75 percent to 9,808 units. Featured Gallery 2016 Nissan Leaf View 30 Photos News Source: EAFO, Getty via Green Car Reports Green Nissan Renault Electric ev sales zoe

Mystery shoppers love Infiniti, hate Tesla

Infiniti, followed by Lexus tied with Mercedes-Benz took the top two spots for best sales experience according to mystery shoppers from the latest Pied Piper Prospect Satisfaction Index, while EV manufacturer Tesla recorded the lowest overall score. Not surprisingly, premium brands dominated the top ranks. Including the three already mentioned, luxury brands occupied seven of the top ten spots and included Audi, BMW, Porsche, and the only American brand to crack the upper echelon, Cadillac. Toyota, Volkswagen, and Nissan rounded out the first ten positions. The news for domestic automakers isn't good. Aside from Caddy, the only other star-spangled automaker to score above the industry average is Chrysler. The rest of FCA, most of GM, and all of Ford fell below the line. But Pied Piper's mystery shoppers handed Tesla the biggest walloping – the company is ten full points below the next lowest brand, Volvo, and its score of 86 is 17 below the average of 103. It's baffling, considering the company's touted direct-sales model. "Tesla leaves me scratching my head," Fred O'Hagan, Pied Piper's president and CEO, told Wards Auto. "They own all of their stores, so you would think each one would be doing the same thing. But they're not. Tesla is consistent in its inconsistencies." O'Hagan added that there's a "huge variation" in Tesla's store-to-store effectiveness, and that in some cases, shoppers found showroom workers that acted more like "museum curators," Wards Auto reports. It might be popular to call Tesla the Apple of the car world, but based on Pied Piper's work, the brand has a long way to go to emulate the uniform shopping experience of an Apple Store. The news might be bad for Tesla, but even for the brands that scored below average, there's cause for celebration. Only Tesla and Mini lost points in this year's rankings, and only Mercedes and Lincoln held steady. Every other brand, including Infiniti, which topped the index for the first time, gained at least one point. The biggest improvements belong to Porsche, Land Rover, and Mitsubishi, which all jumped five points. Pied Piper's annual Prospect Satisfaction Index uses mystery shoppers – over 6,100 this year – from across the country to assess dealers and generate rankings from over 50 individual factors. News Source: Pied Piper via WardsAuto Green Audi BMW Cadillac Chrysler Infiniti Lexus Mercedes-Benz Nissan Tesla Toyota Car Buying Car Dealers study