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2017 Audi RS5 DTM racer is a smorgasbord of carbon-fiber wings

Along with the reveal of the new RS5 coupe, Audi took the wraps off its corresponding DTM racer here at the Geneva Motor Show. This concurrent debut strategy is completely by design. "For the first time, we developed a new DTM car in parallel with the production model. This underlines once again how closely motorsport and production work together at Audi," said head of Audi Motorsport Dieter Gass. As much as Audi would like you to believe its DTM racer shares a lot in common with its production RS5 ... well, it doesn't. Gone is the new biturbo V6, and in its place is a 4.0-liter V8. It's not a Quattro – all DTM racers are rear-wheel drive – and the chassis is a carbon-fiber monocoque. And, of course, there is an extremely complex set of wings, vanes, and splitters that you'd never see on a production car. View 15 Photos Interestingly, the 2017 DTM regulations actually reduce the total amount of downforce allowed. That ought to mean slower cars, but Audi promises the opposite is true, due to sticky new tires and a 4.0-liter V8 engine tuned to deliver "more than 500 horsepower." That's more than last year, thanks to changes made to the air intake and cooling systems. Audi won the Constructor title in DTM last year with the old RS5 racer, so the pressure is on to follow that feat again in 2017. We'll find out soon enough how good the new car is – the 2017 DTM season starts on May 6 in Hockenheim. Related Video:

Audi + Airbnb: What it's like to live in a car commercial

Miles from civilization, in a lonely stretch of Death Valley, lies an unlikely sight: a sleek contemporary home – all glass, concrete, and metal – and a pair of equally modern 2017 Audi R8 V10 Plus coupes. You might have seen the combo in a TV commercial that ran during the Emmys, a spot that had us asking an obvious question: What are these objects doing together, smack in the middle of nowhere? Audi partnered with Airbnb to offer the home and the cars to seven guests. Somehow, we became lucky number eight. The spot, entitled "Desolation," promotes the carmaker's flagship alongside what ended up being an extreme rental property. The idea to build the three-bedroom, 1,200-square-foot house came from Italian writer and author Fabrizio Rondolino, who was long smitten with American desert. The home was built in 2010 using prefabricated construction by San Francisco-based architecture firm nottoscale. It's a spare elevated structure, with floor-to-ceiling windows cinematically framing the sky. To set the four-wheeled mood, images of the R8 sit where family photos would go, and a laser-cut aluminum sign over the entrance announces it as the "Home of the R8." In acknowledgement of the remoteness, a satellite phone sits charged up with clearly printed dialing instructions. An Easter egg from the ad – two jars of Leadfoot Coffee – hides in plain sight on the kitchen counter. You can rent houses like this elsewhere on Airbnb, but here's where gearheads start paying attention: The two Audi supercars counter the architectural tranquility with a combined 1,220 horsepower and an opportunity to rip through the desert at obscene speeds (not to mention several other extras you don't get with a standard vacation rental; more on that later). Seven three-day/two-night stays were offered through an extremely limited Airbnb listing. The buzz surrounding the campaign was so strong that the place booked up in less than six seconds. For what you get, this was a steal. The per-night price of $610 – a reference to the V10's horsepower figure – wouldn't begin to cover the behind-the-scenes logistics needed to coordinate and execute this marketing exercise. I was the sole member of the media invited to experience the Audi Airbnb and got to spend a weekend in this desert playground to see what it was all about. My weekend began when an Audi rep met me and my family at Las Vegas International Airport following a quick flight from Burbank, California.

Audi reveals even more efficient 2015 R18 E-Tron Quattro

We've seen two of this year's LMP1 manufacturer challengers – Porsche's updated 919 Hybrid and Nissan's GT-R LM Nismo. Audi has finished cooking up the successor to its Le Mans champion and unveiled the fifth-generation R18 E-Tron Quattro, even better than before. The bodywork monocoque is carried over, but the body around it has been reshaped to improve airflow from front to rear with a new hood, front fenders and wheel arches, and radiator configuration. The engine cover behind the cockpit is shrunk more closely around the engine, and there are new headlights. The hybrid system can expend double the energy per lap this year, putting Audi in the four-megajoule class under the energy-use regulations. That extra energy will come from 17-percent more capacity built into the flywheel storage system and an electric motor good for 272 horsepower. The revisions haven't increased the weight of the car, pegged to the minimum allowed at 870 kilograms. They have, however, forced changes to the TDI engine, which has to use 2.5-percent less fuel per lap to offset the increased hybrid output. The 558-hp V6 has been optimized such that it "managed to more than compensate for the loss" of fuel allowed, and Audi expects "significantly" lower lap times this year and less fuel used. We're still waiting to see what Toyota has done to its World Endurance Championship-winning racer, but we're already looking forward to this year's Le Mans. It's going to be cracking. You'll find a press release below the videos with more info on the Audi. Related Video: New Audi R18 e-tron quattro even more efficient - Aerodynamics, hybrid drive and many other details improved - Efficient TDI engine consumes even less fuel than before - Technologies from Le Mans winning cars now in production at Audi Ingolstadt, March 21, 2015 – Audi is starting the 2015 season with a thoroughly revised R18 e-tron quattro. In the FIA World Endurance Championship (WEC) and in the Le Mans 24 Hours as the season's pinnacle event, Audi is going to compete with a hybrid sports car in the 4-megajoule class. A twofold quantity of hybrid energy, fundamentally revised aerodynamics, the next step in lightweight design and a lot of detailed work characterize the fifth generation of the Audi R18. "The possibilities of the revolutionary regulations that have been in effect for LMP sports cars since 2014 are far from having been fully used.