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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.

2014 Audi Q5 TDI

I've struggled with diesel technology. It's not that I have a problem with it or dislike it, but rather that I don't particularly understand what stops its wider-spread adoption. Sure, memories of rust-prone, smoky, sluggish and uneconomical Oldsmobile diesels aren't exactly easy to erase from the collective memory of the North American motoring public, but I'd think that a few years into the latest crop of clean diesels, there'd be wider adoption - or at least consumer consideration - by now.
Part of the issue is the still limited number of segments that diesels are available in. The Volkswagen Golf/Jetta TDI is finally getting a challenger in the form of the Chevrolet Cruze Diesel, and the BMW 328d is bringing something new to the entry-level sports sedan, but there are still a huge group of segments where diesel-power has no representation.
The small, luxury crossover realm is not one of those. It has the Mercedes-Benz GLK250 Bluetec, a stylish crossover with a silky-smooth 2.1-liter, turbodiesel four-cylinder that can return the kind of fuel economy that makes people take notice. And while the GLK250 is quite good, economy will only spread the diesel's appeal so far. People need to experience the seat-flattening torque that these mills can produce, and for that, we most humbly recommend the new 2014 Audi Q5 TDI.

2017 Audi TT RS arrives with 400 horsepower

If the Audi TT was ever considered to be more style than substance, that stereotype can be put to rest with the arrival of the new TT RS. Revealed in both coupe and convertible bodystyles at the Beijing Motor Show today, Ingolstadt's latest performance models boast 400 horsepower. And for nostalgic VW and Audi fans, this is still the only way to buy a five-cylinder engine. For those keeping track, that represents an increase of 60 hp over the previous version, accompanied by 354 pound-feet of torque. Channeled to all four wheels in typical Quattro style, those 400 horses will propel the TT RS to 62 miles per hour from a standstill in as little as 3.7 seconds. That's enough to undercut the new Porsche 718 Cayman S by a good few tenths, and will leave the vast majority of drivers on the road or track looking at its pair of oval tailpipes, OLED taillights, and fixed rear wing rather than the new front end with its oversized air intakes. Those lucky enough to find themselves inside the new TT RS will find a pair of low-slung bucket seats along with standard TT fare like a 12.3-inch Virtual Cockpit display, Audi Connect infotainment system, and inductive smartphone charging. US pricing and availability are still being worked out, but Audi of America spokesman Mark Dahncke tells Autoblog that the new TT RS will arrive in showrooms Stateside "sometime next year." Overseas the new model is set to launch in the fall. The starting price of ˆ66,400 euros listed for Europe works out to nearly $75k at current exchange rates. More tellingly the TT RS price is just above the ˆ64,118 that Porsche charges for the new 718 Cayman S. This is clearly one bout of sibling rivalry that's just heating up. Related Video: Dynamic duo: Audi TT RS Coupe and Audi TT RS Roadster Audi is sending the most powerful TT ever into the competitive field. Its newly developed five-cylinder engine delivers 400 hp – accompanied by unmistakable engine sound. The Coupe and Roadster are celebrating their world premieres at the Beijing Motor Show. Muscular front end, large air inlets, low-positioned spoiler, fixed rear wing – at first glance, the Audi TT RS* clearly hints at just how much power there is under its streamlined skin. Its new five-cylinder aluminum engine delivers 400 hp, which is 60 hp more than the power of the previous model.