2001 Audi S8 Base Sedan 4-door 4.2l on 2040-cars

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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.

The 2013 Rolex 24-hour race at Daytona comes down to the last hour [spoilers, w/video]

It took 24 hours to run the race, but it was the last one was stuffed with the high action as four cars were still trying to figure out how to gain victory on the track and in the pits. Along with the obligatory crashes, spins, mechanical issues and retirements had come numerous penalties, a double-digit number of full-course yellows and two hours of fog that turned early Sunday morning into a stretch of parade laps.
The final hour would make up for the morning - drivers who might have been happy just to get on the podium had a shot at victory as the end of the race approached, and that turned into a few gambles that paid off, and at least one that didn't...

2016 Audi R8 looks like a promising second chapter [w/video]

Audi shook up the supercar market when it released the original R8 road car. Now, it's hoping to do the same with the second-generation of the handsome mid-engine star. But where the original R8 was something of an analog supercar, boasting a naturally aspirated V8 and a delightful gated shifter, this new model is something much different. Gone is the popular, high-revving 4.2-liter V8 and the snickety-snack transmission, although the 5.2-liter V10 that joined the original R8 later in its life remains. In base form, it turns out 540 horsepower in the second-gen R8, while the V10 Plus model can be had with an impressive 610 ponies. That's good for a sprint to 60 of just 3.5 seconds and a top speed of 201 miles per hour in the former and 3.2 seconds and 205-mph in the latter. A seven-speed dual-clutch transmission is the sole gearbox, sending power to a revised Quattro all-wheel-drive system that's capable of shunting 100 percent of the engine's torque to the rear axle. Meanwhile, Audi has managed to shave 441 pounds by using a new Audi space frame, with more aluminum and carbon fiber than before. Weighing in at just 3,205 pounds, the R8 is slightly lighter than the new, V8-powered Ferrari 488 GTB, although it's not quite as light as its cousin, the 3,135-lb Lamborghini Huracan. And of course, we can't forget to mention the R8's new look. It's very clearly an evolution of the first-gen's handsome styling. A strong grille and canted headlights, inspired by the TT and the concepts that came before it, highlight the front end, while Audi has opted to bisect the last-gen car's side blades with a body-color section of sheet metal. In back, slim taillights, exhausts that have been integrated into the rear bumper and a central diffuser are the main styling features. Opt for the V10 Plus, and you'll get a sizable rear wing, for added downforce. Take a look at our full gallery of live images from Geneva for a closer look at the new Audi R8.