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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.

Honda is spending $124 million on a new wind tunnel facility in Ohio

Ford isn't the only company building a multi-million dollar wind tunnel this year. Honda is also getting in on the action. Its new facility will cost less than Ford's at $124 million, and construction begins this summer. It will be built at the Transportation Research Center in Ohio, which is where Honda's NSX proving grounds are located. Honda will install a five-belt rolling road in the tunnel for testing of more pedestrian vehicles, and a wide, high-speed, single belt version for testing of sports cars and race cars. However, it seems the Honda facility will only be capable of testing wind speeds of up to 192 mph, whereas Ford claims a top speed of 200 mph. Cameras and microphones will also be set up inside the testing area at the Honda tunnel to help find wind noise trouble spots. Honda won't necessarily be the only company using the new wind tunnel either. The facility will be available for other groups and companies to use. There are even secure bays those groups can use for their work. Related Video:

2016 Acura ILX, for better or worse [UPDATE]

Unfortunately, the slick-shifting six-speed manual transmission has been discontinued. UPDATE: A previous version of this story incorrectly stated that the 2.4-liter engine in the 2016 ILX is the same unit found in the Honda Civic Si. The ILX's new engine is the same direct-injected four-cylinder found in the new TLX. The text has been edited to reflect this. "It's just a badge-engineered Honda Civic." This (uninformed) criticism has been leveled at the Acura ILX since the premium compact arrived on the scene to duke it out with the Buick Verano and, more recently, the Audi A3 and Mercedes-Benz CLA-class. For model year 2016, Acura will attempt to address the car's critics, issuing a major reshuffle of the sedan's lineup along with the typical sheen of a mid-cycle refresh. Following up on the discontinuation of the ILX Hybrid for 2015, Acura is dispatching the antiquated pairing of the base 2.0-liter four-cylinder and five-speed automatic for 2016, and simply slotting in the standard powertrain of the TLX. The 2.4-liter four-cylinder produces 201 horsepower and 180 pound-feet of torque, with peak output arriving at 3,600 rpm. The ILX also benefits from the same eight-speed, dual-clutch transmission found in the TLX. Unfortunately, the slick-shifting six-speed manual transmission we've always enjoyed has been discontinued. Sad trombone, indeed. Powertrain tweaks aside, Acura has issued a pretty handsome freshening for 2016. The ILX was always a handsome offering, but the new front and rear clips are improvements. Acura's love-it-or-hate-it JewelEye headlights have been grafted onto the ILX, while the grille, a traditional weak point for the brand, is perhaps one of the best we've seen out of the company in several years. The rear taillights also received some attention, although it was the back bumper that saw the biggest update, with the lower section getting a sportier look. Acura will also add a new A-Spec package for 2016, which replaces the standard 17-inch wheels with 18s, adds "Euro-style" stitching to the steering wheel and adds black Lux Suede inserts to the seats, along with a flurry of smaller aesthetic tweaks. The A-Spec can be added alongside the existing Premium and Technology Packs. Acura hasn't released any interior images as of this writing, although we'll be sure to snap a few following today's debut conference at the 2014 Los Angeles Auto Show. Until then, scroll down for the official press release from Acura.