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Audi testing long-tail version of R18 e-tron quattro for Le Mans

Race teams are always looking for ways to shave hundredths of seconds of their lap times. Case in point: Audi is making some slight changes to its prototype racecar to make it ever so much more slippery as it cuts through the air.
Debuting at the second round of the FIA World Endurance Championship at Spa on May 4, Audi will be testing a long-tail version of its R18 E-tron Quattro racecar. As its name suggests, the long-tail car gets a lengthened rear section with the goal of improving aerodynamics. The long-tail will be run alongside the standard version of the racecar as a testbed for possible changes that might be in store, heading into the 24 Hours of Le Mans.
Audi did not say how many inches were added to the racecar, but as you can see in the image above, "long-tail" definitely doesn't take on the same meaning of classic long-tail cars of the past such as the Porsche 917. More information about the car, Audi's team and even some info about the track itself can be found below.

Bentley doubles down on diesels with a triple-charged Bentayga

Volkswagen Group isn't totally giving up on diesels. While its flagship VW brand is clearly tarnished, the ultra-luxury Bentley division just revealed plans for its first oil-burner, a triple-charged 4.0-liter V8 that produces 429 horsepower and 664 pound-feet of torque. If the powertrain sounds familiar, that's because it's the same one found in the Audi SQ7 TDI. It's a clever system capable of giving what Bentley claims as the world's fastest diesel SUV a top speed of 168 miles per hour and a zero-to-62 mph time of 4.8 seconds. The SQ7 TDI can get to 62 mph in the same time, but is electronically limited to 155 mph, because it wouldn't make sense if the cheaper SUV could outperform the much more expensive one. The Bentayga also emits the lowest CO2 output of any Bentley and has a range of over 621 miles on one tank. Despite having a curb weight of 5,269 pounds, Bentley claims the Bentayga can get a combined rating of 35.8 mpg on the European cycle. The Bentayga Diesel may not be as powerful or as fast as the W12-powered model, but it's a lot more fuel efficient as the latter achieves a combined rating of 21.6 mpg on the European cycle. Other than the new engine, the Bentayga diesel is nearly identical to its gasoline-powered twin except for some discreet "V8 Diesel" badges on the front doors, a new exhaust outlet design, and a black grille. A Bentley spokesperson confirmed that the Bentayga diesel would not be sold in the US. And since Bentley won't be at this year's Paris Motor Show, don't get your hopes up on spotting the vehicle there. The diesel-powered SUV will go on sale in Europe early next year, which will be followed by its release in Russia, South Africa, Australia, New Zealand, and Taiwan. Pricing for the SUV has not been announced yet. Related Video: Featured Gallery 2018 Bentley Bentayga Diesel View 20 Photos News Source: BentleyImage Credit: Bentley Green Audi Bentley SUV Diesel Vehicles Luxury Performance bentley bentayga

Porsche hybrids come up short at Le Mans

Two cars, one finish, zero victories. That's a brief synopsis of Porsche's hybrid-vehicle performance in the 24 Hours of Le Mans race in France. There's always next year. Porsche entered two 919 Hybrid vehicles in the race. The No. 14 car essentially limped to the finish line after encountering drivetrain problems. The other Porsche hybrid, No. 20, was driven by Germany's Timo Bernhard, New Zealand's Brendon Hartley and Australia's Mark Webber. That car ran for more than 22 hours before its own powertrain issues did that racing team in for good. Both vehicles ran towards the front of the pack at times during the race, and the No. 20 car actually led the race after about 20 hours. Still, both teams said they were disappointed in the results. Porsche sister company Audi came up big for the 13th time in the race's long and storied history. One Audi R18 E-Tron Quattro won the race, while another finished second. The Toyota that had pole-position and was winning much of the race shut down after 15 hours of racing because of electrical issues and Nissan had trouble with is ZEOD RC. Check out Porsche's press release below, and read here for a more general race recap. STRONG PERFORMANCE BY PORSCHE 919 HYBRIDS BUT NO DREAM ENDING IN PROTOTYPE RETURN TO LE MANS Le Mans. After a strong performance by both Porsche 919 Hybrids, the Porsche Team was left empty-handed after a dramatic final stage of the race. Following more than 22 hours, car No. 20 driven by Timo Bernhard (Germany), Brendon Hartley (New Zealand) and Mark Webber (Australia) suffered a powertrain problem at the world's most famous endurance race, the 24 Hours of Le Mans. Earlier in the race the LMP1 class car was leading overall for a significant period of time. The second innovative and highly complex prototype – in the hands of Romain Dumas (France), Neel Jani (Switzerland) and Marc Lieb (Germany) – likewise proved to be very competitive, but was hampered by a drivetrain problem. However, their No. 14 car crossed the finish line under its own power. After a thrilling start to the race with changing weather conditions, numerous accidents and a relatively calm night, Bernhard took the overall lead in the No. 20. The longtime Porsche factory driver returned to the top spot after 20 of the 24 hours. At 12:36 (CET) on Sunday, he handed the leading car over to Webber. Less than 20 minutes later the Australian was forced to slow down and drove solely on electric power back to pit lane.