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Audi debuts all-new R18 E-Tron Quattro with novel secondary hybrid system

This is the new Audi R18. It looks like the Bond villain of race cars (it has red running lamps), and if Audi's past is any indication, it'll prove difficult to beat in the LMP1 class of the 2014 World Endurance Championship.
The car's full name is the Audi R18 E-Tron Quattro, just like last year's car. Also like last year's car, the new R18 draws its power from a V6 turbodiesel, which powers its rear wheels, and Audi's E-Tron hybrid system, which runs its front axle. Unlike last year's car, though, this R18 has a secondary hybrid system. Audi has fitted the V6 with an electric turbocharger and figured out how to capture waste heat generated when the engine reaches its boost limit. That power can then be stored and fed back into either the turbo or the front axle's hybrid system under acceleration.
There are a number of changes to the body on the new car, forced in large part by series regulation changes. The car is narrower, particularly at the front, but it's also taller. The front end is set off by a new wing, as part of a new WEC regulation. Audi seems quite pleased about this, citing an improvement in front-end downforce and a reduction in cost. Like Formula One, the WEC contenders now have to contend with a ban on the so-called blown diffuser, which forced exhaust gases over the diffuser, creating downforce. That's necessitated some changes from Audi, although as we have no rear shots of the car, we can't tell you what it looks like.

Leaked design sketch may preview Audi TT Sportback Concept for Paris

With the debut of the new TT and TTS hardtops in Geneva earlier this year, as well as the more recent debut of the convertible model, Audi has ticked the same body style boxes as the first two generations of TT. Unlike those earlier examples, though, the German luxury manufacturer has provided a slow and steady parade of concepts showing off possible directions for the TT.
First, we had the Allroad Shooting Brake Concept from the 2014 Detroit Auto Show. Then, in April, we saw the Offroad Concept, whose biggest differentiation from the Detroit concept was its extra pair of doors, making it appear, at least superficially, quite similar to one of Audi's Sportback models. This clear evolution from shooting brake to neo-Sportback might not have meant much, had the image you see above not leaked.
This is, allegedly, the third member of the larger TT-based concept family, and - surprise, surprise - it has massaged the profile of the Offroad Concept into something that, to our eyes, appears far more grounded in reality. It looks like a natural fit into Audi's line of four-door-coupe models, which are more fleshed out in Europe, thanks to the presence of the A5/S5 Sportback. Slotting in a TT-based model could represent a coup for Audi, as such a small four-door with such obvious sports car roots would be mostly unchallenged.

Audi TT Quattro Sport Concept takes the next-gen to the extreme

There's little doubt that the new Audi TTS and its 310-horsepower, 2.0-liter, turbocharged four-cylinder will be very quick when released to the general public. As a means of reminding us that Audi can do much more with the little TT, though, the German manufacturer has presented this, the TT Quattro Sport Concept, alongside its litter of new sports cars.
Complete with a 420-horsepower, 2.0-liter, turbocharged engine - yes, it really puts out 210 horsepower per liter - the TT Quattro Sport can snap to 62 miles per hour in just 3.7 seconds. 331 pound-feet of torque is also on offer, meaning this one-off TT outguns the TTS by 110 horsepower and 51 pound-feet of torque.
An S-Tronic transmission shuffles the power about, while the car itself rides on a lowered and stiffened suspension. 20-inch alloys are featured with centrally locking, racing-style hubs. Those racy wheels are housed in wells that have had their arches stretched an additional 1.18 inches, which, along with the lowered suspension, contribute to the TT's aggressive looks.