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Weekly Recap: Automakers rethink the definition of luxury

Variety is the spice of life, but it's becoming a prerequisite for luxury carmakers in the ultra-competitive US market. The Detroit Auto Show was strong evidence of this reality. It's not enough to offer attractive and well-appointed cars and SUVs anymore. Luxury brands that want to be competitive need to invest in everything from high-powered supercars to clever hybrids. To be relevant, you need to be green and mean – and everything in between. As General Motors product chief Mark Reuss said after the reveal of the 640-horsepower Cadillac CTS-V: "We are not leaving anything on the table." He was speaking for Cadillac, but he might as well have been speaking for the luxury car market. The CTS-V debuted in Detroit about an hour after Lexus surprised showgoers with the reveal of the RC F GT3 race car and then announced ambitious plans to return to competitive racing. That almost overshadowed the fact Lexus had just revealed another potent addition to its growing F line, the 467-hp GS F. View 20 Photos But for luxury brands, it's not just about maximum horsepower for well-heeled enthusiasts or decadent amenities for the Grey Poupon set. Strong competition from all corners has forced automakers to refine and expand their lineups in ways unforeseen even a few years ago. Case in point: Mercedes-Benz finally has an answer to the BMW X6, rolling out the GLE coupe in Detroit. The X6, which blends coupe-like styling cues with some of the functionality of an SUV, debuted in 2008. Back then it was a punchline, but seven years and more than 260,000 sales later, the X6's success has compelled Benz to respond. Mercedes – one of the strongest proponents of diesel technology – also debuted the C350 plug-in hybrid sedan, which promises a range of 20 miles on electricity, though fuel economy figures were not announced. The car pairs Mercedes' well-received 208-hp turbocharged four-cylinder with an electric motor for total output of 275 hp and 443 pound-feet of torque. Meanwhile, Infiniti will add the Q30 hatchback to its lineup by the end of the year, new president Roland Kruger reiterated in Detroit. It's expected to be joined by a crossover variant, and the additions will help strengthen Infiniti in the United States and abroad. "While we're expanding our product line, we're also expanding our market reach," he said. That's something echoed by Jaguar executives, who are preparing to launch the brand's first crossover, the F-Pace, in 2016.

European automakers overstate fuel economy by 40% on NEDC cycle

Volkswagen is apparently not alone among European automakers when it comes to giving out funny emissions or fuel economy numbers. It turns out that pretty much everyone across the Pond is doing it. So much, in fact, that, on average, the difference between European vehicles' fuel-economy and emissions figures and real-world driving results is about 40 percent, Bloomberg says, citing a report from Brussels-based Transport & Environment. Yes, 40 percent. Mercedes-Benz was the worst offender, as the Daimler division on average overstated its vehicles' fuel economy by 48 percent, said the study, which used data from International Council on Clean Transportation (ICCT). That automaker isn't exactly a world-beater for fuel economy in the US. In fact, two of its models, the Mercedes-Benz G 63 AMG and the G550 (pictured), showed up on the American Council for an Energy-Efficient Economy's (ACEEE) annual list of cars that are "meanest" to the environment. "The information provided by manufacturers on fuel consumption is based on the NEDC test cycle, which is prescribed by law and conducted in a laboratory. Since real driving conditions generally deviate from conditions in the laboratory, the consumption figures can also deviate from the standardized figures. Since T&E has unfortunately not published the test conditions used in its study, it is not possible to provide a useful analysis of the test results," Mercedes-Benz wrote in an e-mailed statement to Autoblog. "The data pool used also does not allow a thorough scientific assessment. Mercedes-Benz emphatically supports the introduction of the WLTP (Worldwide Harmonized Light Vehicles Test Procedure). This is supposed to replace the NEDC with the aim of bringing the rated fuel consumption and the actual consumption closer together. We also actively support the dialog between industry (ACEA) and the authorities, and are in regular contact with the EPA and the ARB in the US." The ICCT is the group that helped spur the investigation that led to the Volkswagen diesel-emissions scandal we're all still talking about, so it shouldn't expect Christmas cards from the largest German automakers this year. This new study came from data taken from about 600,000 cars. That's a lot of funky air floating over Rome. The overstatements were pretty widespread, too. The fuel-economy of the BMW 5 Series was overstated by almost 50 percent, as was the Peugeot 308's.

Mercedes could make EV batteries with Audi, BMW

It's not a big leap from digital maps to batteries, it turns out.The head of Mercedes-Benz parent Daimler said recently that he envisions his company working together with German automotive competitors BMW and Volkswagen to further accelerate electric-vehicle battery technology. The three automakers recently worked together to enhance their in-car maps systems. Daimler CEO Dieter Zetsche talked about "commonalities" between automakers, not the least of which is the need for all of them to achieve increasingly stringent fuel-economy requirements in the European Union, at the Frankfurt Auto Show last week, according to Reuters. While these companies have made their own inroads as far as plug-in vehicles go, they are all behind the Renault-Nissan Alliance when it comes to public deployment of electric vehicles. This summer, Daimler, Audi and BMW hooked up to acquire the Nokia Here digital-mapping service for about $2.8 billion. The triad of automakers beat out companies such as Apple and Uber to buy the entity, which was founded in 1986 as Navteq. Nokia bought the company in 2007. The acquisition makes sense as the automakers work on improving their products with features like cloud-based data to warn drivers of icy roads and traffic jams. The technology will likely also eventually be used in autonomous vehicles. Automakers working together for a common goal of improved technology is nothing new, of course. General Motors and Honda agreed in 2013 to work together to accelerate hydrogen fuel-cell drivetrain development. Earlier that same year, Daimler said it would work with Ford and Nissan in a separate collaboration to speed up the development of hydrogen fuel-cell technology. Related Video: