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How VW's hyper-efficient XL1 will influence the next Golf

In 2007, the European Union mandated fleet average CO2 emissions of 158.7 g/km. For 2015, that figure will drop to 130 g/km, and the target for 2020 is an ambitions 95 g/km. Thanks to some German politicking, that target will be phased in from 2020 to 2024, but it will still apply to 80 percent of passenger cars in that first year. In US miles per gallon, that's the equivalent of going from about 35 mpg to 42 mpg to 57 mpg. The current Volkswagen Golf is rated from 85 g/km of CO2 to 190 g/km depending on model - and zero for the e-Golf, so for the next-generation MkVIII hatch due in 2019, to meet the goal, Volkswagen engineers will need to introduce a bunch of new tricks. According to a report in Autocar, VW be mining its hyper-efficient XL1 for some of them.
Predictions for the next Golf include a variable-compression engine, an electric flywheel and an electric turbo, along with taking greater advantage of coasting. Volkswagen could be getting help from Audi with the electric turbo and variable-compression engine and electric turbo, with Audi already having shown off the former and brand technical boss Ulrich Hackenberg confirming the VW Group is working on the latter. It's possible the flywheel system could also have the mark of The Four Rings: Autocar mentions a British system that Volvo is testing, but the R18 e-tron Quattro racer has been using one for years.
The need for such features is because the company won't be able to net enough future gains from just aerodynamic improvements and advanced materials. As price will be a factor (the regulations are expected to "add hundreds of euros to the cost of building a car"), adding much more aluminum or carbon fiber is an unlikely option. We're told the next generation won't be longer or wider than the current car, and being Europe's most popular model, VW doesn't want to make a big bet on futuristic aero, but the report says the MkVIII will "likely" have "the most aerodynamic treatment yet seen on a production vehicle," the area where lessons learned from the XL1 will truly be seen.

Audi rumored to leave top-tier endurance racing after 2017

Volkswagen's ongoing diesel scandal is turning out to be an expensive problem for the German automaker. With a recent settlement expected to cost the company up to $14.7 billion, the company is scrambling to find ways to save cash. In light of this, Audi could be pulling out of the highest class of endurance racing, which it has dominated for years. A report from Germany's Auto Motor und Sport, indicates that Audi has already finalized the automaker's departure from the World Endurance Championship's top-tier LMP1 class after the 2017 season. Another report by Autocar cites an unnamed insider to corroborate the LMP1 exit rumors. The report fingers the VW Group's ongoing diesel scandal's financial fallout as the main culprit for Audi bowing out of LMP1. The move to could also be due to the group's decision to move away from diesel technology. Audi's LMP1 car, the R18, utilizes a V6 turbo-diesel engine. The Porsche 919 Hybrid, on the other hand, uses 2.0-liter turbocharged V4 engine that runs on gasoline. Audi has won the legendary 24 Hours of Le Mans 13 times since 1999, making Audi an unstoppable force in endurance racing. Porsche, Audi's corporate sibling, reentered endurance racing with a LMP1 competitor of its own in 2014 and won the constructor's championship last year. Audi's decision to leave LMP1 could give Porsche a shot at creating its own Le Mans-winning dynasty. Autocar reports that Audi is expected to continue fielding cars in other WEC classes, like GT3 and GT4, and perhaps the brand will even enter Formula E. We reached out to Audi for some clarification on the matter and a spokesperson stated that the rumors were "pure speculation at this point." Related Video: News Source: Auto Motor und Sport, AutocarImage Credit: Audi Motorsports Rumormill Audi Porsche Volkswagen Diesel Vehicles Hybrid Racing Vehicles vw diesel scandal rumor world endurance championship wec porsche 919 hybrid

The best cars we drove this year

Six hundred and fifty. That's roughly how many cars pass through the hands of Autoblog editors every year, from the vehicles we test here at home, to the cars we drive on new product launches, testing roundups, long-term cars, and so on. Of course, our individual numbers vary due to several reasons, but at the end of the day, our team's repertoire of automotive experience is indeed vast. But let's be honest, some cars certainly stand out more than others. So as the year's about to turn, and as we're readying brand-new daily cat calendars for our cubicles, our editors are all taking time to reflect on the machinery that made this year so special, with one simple, open-ended question as the guide – a question that we're asked quite frequently, from friends, family, colleagues, and more. "What's the best car you drove this year?" Lamborghini Huracan When I review the list of everything I drove in 2014, picking an absolute favorite becomes almost impossible. I mean, how does one delineate between the joy offered by cars as different as the Alfa Romeo 4C, Volkswagen Golf R, Mercedes-AMG GT S and even the humble-yet-wonderful Chevy Colorado? Okay fine, I'll just pick the Lamborghini. I drove the Lamborghini Huracan LP 610-4 on a racetrack, in the mountains, and along southern coast of Spain. It felt like the king of the car jungle in all of those places, sucking the eyeballs of observers nearly out of their heads as it drove by, and almost melting my brain with its cocktail of speed and grip and intense communication. It feels a little easy to say that the one new supercar I drove this year was also my favorite, but the fact is that the Huracan is one of the finest cars I've driven during my career, let alone 2014. Judge me if you must. – Seyth Miersma Senior Editor Rolls-Royce Wraith There are a couple of ways to look at the question, "What's the best car you drove this year?" In terms of what was so good I'd go out and buy one tomorrow, that'd be my all-time sweetheart, the Volkswagen GTI. Or if I'm just talking about sheer cool-factor, maybe something like the Galpin GTR1, BMW i8, or Mercedes-Benz G63 AMG. But instead, I'm going to write about the sheer opulence of being the best of the best. The hand-crafted, holier-than-thou, shut-your-mouth-when-I'm-talking-to-you supremacy. I'm picking the Rolls-Royce Wraith. I drove the Wraith for a week in April, and was really, really impressed. This car does everything, perfectly.