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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.

2014 Audi RS5 Cabriolet [w/video]

Brash Bruiser Loses Top, Gains Weight, Still Makes Friends
Everything we said after driving the RS5 coupe still rings true, even after Audi has gone and ripped off its metal roof, replaced it with a big cloth version, and tossed us the keys. The 2014 Audi RS5 Cabriolet is another bold, big-boned airmobile to make open-top lovers swoon. There is absolutely nothing revolutionary to speak of here versus its hardtop counterpart, frankly, but tear-assing through the southern French hills as the brilliant sun warmed us is plenty good reason to talk a lot about it anyway. And hey, it beats frigid January in Detroit, where the RS5 Convertible is shortly to receive its US introduction.
One issue that could corrupt things a bit is the convertible's added weight factor. It's one thing when an Audi TT removes its top and gains 176 pounds, or when a Porsche Cayman morphs into a Boxster and gains 66 pounds; the effect on dynamics will still be acceptable. But when it comes to a huge-roof coupe like the RS5, that gain in mass becomes 400-plus pounds in cabrio form, for a grand curb weight of 4,461 pounds. As a number attached to this size of a car that's also branded with an RS badge promising raciness, we admittedly fretted. Then we drove the Audi RS5 Cabriolet to cheer up.

Honda, Audi sweep European tin-top championships

Despite his win at the Japanese Grand Prix this weekend, Sebastian Vettel still has another race or two to go before he can claim his fourth consecutive World Championship in Formula 1. Back in Europe, however, this weekend saw several championship titles decided in a variety of tin-top racing series.
In the British Touring Car Championship, Gordon Shedden won the final round at Brands Hatch this weekend, but that wasn't enough to defend his title. Instead, the ultimate glory went to Andrew Jordan, also driving a Honda Civic, coming in ninth place to take a seven-point victory over Shedden in the final standings. Little wonder then that Honda took the constructors' championship and the Honda Yuasa Racing team took the teams' title. Four-time BTCC champion and Fifth Gear co-host Jason Plato, now driving for MG, landed third in the standings.
While Honda dominated the British championship, it was Audi that reigned supreme in mainland Europe. In the Superstars International Series - Italy's touring-car championship - Gianni Morbidelli drove the Audi RS5 to his fifth title, finishing the season's final race in a calculated third place behind the BMW racecars of Giovanni Berton and Max Mugelli. It's the second consecutive win for the RS5 in the Superstars series (Johan Kristoffersson won the title last year), and the second this year following Mike Rockenfeller's title in the RS5 DTM.