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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

Car theft skyrockets thanks to rising parts prices

Cars and trucks today have achieved a high level of average quality, with safety and technology features that keep occupants safer than ever and meet consumers' high expectations. But the National Insurance Crime Bureau finds that those components come with a rising price tag, leading to expensive repair bills — and rising vehicle thefts to support a thriving black market for parts. The nonprofit NICB said it looked at the cost of replacement parts for the top 10 stolen 2016 models, with average OEM part prices pulled from a database of more than 24 million vehicle damage appraisals generated for 2016 and 2017 insurance claims. The list did not include major components like engines or transmissions, only easily-stripped components like bumpers, doors, hoods and headlights. It found that: The 2016 Toyota Camry, which had a used market value of around $15,000, had 15 commonly replaced parts that added up to almost $11,000, not including labor, with quarter panels alone costing almost $1,600 a pair and a set of alloy wheels tallying more than $1,600. The Camry was also the top stolen vehicle in 2016 at 1,113 thefts. A 2016 Nissan Altima had 14 standard parts worth more than $14,000, including a single headlamp assembly that costs just over $1,000. The Altima was the second-top stolen vehicle in 2016 at 1,063 vehicles stolen. And the 2016 GMC Sierra pickup, which was No. 7 on the 2016 top-stolen list, rang up $21,000 from 20 standard components, including an $1,100 headlamp assembly and an $1,100 rear bumper. "For the professional theft ring, stealing and stripping vehicles for parts has always been a lucrative business," Jim Schweitzer, NICB's senior vice president and chief operating officer, said in a statement. "On today's cars and trucks, the parts are often worth more than the intact vehicle and may be easier to move and sell. That's why we see so many thefts of key items like wheels and tires and tailgates ... there's always a market for them." Check out the NICB infographic below. Vehicle thefts in the U.S. rose by more than 4 percent in 2017, based on preliminary FBI data, after rising 7.6 percent in 2016, though the overall trend has been down since vehicle thefts peaked in 1991, according to the NICB. Related Video: Image Credit: National Insurance Crime Bureau Aftermarket GMC Nissan Toyota Auto Repair Insurance Ownership auto parts car values stolen car nicb national insurance crime bureau components

Here’s how 20 popular EVs fared in cold-weather testing in Norway

Electric vehicles are known to suffer diminished performance in cold weather, but some do a better job than others hanging onto their range capacity while cabin heaters and frigid outdoor temperatures sap power from their batteries. Recently, the Norwegian Automobile Federation put the 20 of the best-selling battery-electric vehicles in the country to the test, to see not only how winter weather affected their range but also their charging times. The major findings: On average, electric vehicles lost 18.5% of their official driving range as determined by the European WLTP cycle. Electric vehicles also charge more slowly in cold temperatures. And interestingly, the researchers learned that EVs don’t simply shut down when they lose power but instead deliver a series of warnings to the driver, with driving comfort and speed levels maintained until the very last few miles. Because itÂ’s Norway, the worldÂ’s top market for electric and plug-in hybrid vehicles by market share, the test included many EVs that arenÂ’t available here in the U.S. But there are many familiar faces, among them the Nissan Leaf, Tesla Models S, 3 and X, Hyundai Kona (known here as the Kona Electric) and Ioniq, and Audi E-Tron. In terms of range, the top-performing EV was the Hyundai Kona, which lost only 9% of its official range, which the WTLP rated at 449 kilometers, or 279 miles, compared to its EPA-rated range of 258 miles on a full charge. It delivered 405 km, just enough to nudge it ahead of the Tesla Model 3, which returned 404 km. Other top performers included the Audi E-Tron, in both its 50 Quattro (13% lower range) and higher-powered 55 Quattro (14% lower) guises; the Hyundai Ioniq (10% lower); and Volkswagen e-Golf (11% lower). At 610 km (379 miles) the Tesla Model S has the longest WLTP range of all models tested and went the furthest, but still lost 23% of its range, though it also encountered energy-sapping heavy snow at the end of its test, when many cars had dropped out. The Model 3 lost 28% of its range. The worst performer? That goes to the Opel Ampera-e, better known stateside as the Chevrolet Bolt. It traveled 297 km (about 184 miles) in the test, which was nearly 30% lower than its stated WLTP range. We should also note that Opel, now owned by Groupe PSA, is phasing the car out in Europe and that Chevy recently upgraded the Bolt here in the U.S.