Clean 2005 Audi A4 2.0t Quattro on 2040-cars

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A few pre-race notes and a lot of photos from the 24 Hours of Le Mans

The 82nd running of the 24 Hours of Le Mans is on.
Audi has won 12 of the last 15 events, the scion of Auto Union is trying to make it 13 this year. To do so, it will have to overcome a situation faced only three other times during its dominance of La Sarthe: underdog status. Toyota has won the first two races of the year and claimed pole for this race, the rumor being that this year it's Toyota's race to lose.
And then there's Porsche. It's been 16 years since the Stuttgart brand raced on the top rung at Le Mans, three years years since it announced its return, just a year since it acquired Mark Webber in a signing that wasn't subtle and a few months since we got eyes on the 919 Hybrid.

Next-gen Audi A7 design to be 'radical'

The Prologue concept has our attention. In fact, it has everyone's attention. It is the preview for the coming A7, and Autocar summarized Audi design chief Marc Lichte's concerning the new A7 as, "A more radical design is promised for the next-generation." In fact, the next A7 is said to become "the most radical" of three coming designs inspired by the Prologue, the others being the new A6 and A8. Autocar also said Lichte made it clear that there would be "much greater visual differentiation between the trio and other future Audis." Yet, for at least four years Audi has been talking about a design overhaul to fight back charges that its cars look too similar. In 2011 there was a "design initiative" dubbed AQR to make sure that "the design details will be different" between its hatchbacks, Quattro offerings and R Sports cars, and make proportion changes to its sedans. That didn't really move the needle. In 2013, then-design boss Wolfgang Egger hailed the end of "scalable design," a prime culprit for the 'same sausage, different lengths' accusations. We're not sure the needle moved much then, either. And this year came news of a new "Quattro-centric" design language that would stress horizontals, perhaps the new Q7 it's first serious proponent, a crossover that we'll have to see before we can judge. Although we've heard the bells ringing about fresh design at Audi for years, we hope they mean it with products that come after the Prologue; it is a fabulous place to start. Featured Gallery Audi A7 Sportback facelift View 13 Photos News Source: Autocar Design/Style Audi Sedan marc lichte

Audi A7 Sportback H-Tron Quattro packs plug-in hydrogen powertrain

If you think a plug-in diesel hybrid is an expensive proposition, just wait until you hear details about the just-revealed Audi A7 Sportback H-Tron Quattro. The "H" in H-Tron, as you might guess, stands for hydrogen, so say hello to a new concept that combines a plug-in battery system with a hydrogen fuel cell. Yeah, exactly. Let's start with the numbers. On the plug-in side, the new H-Tron has an 8.8-kWh lithium-ion battery that can power the car for up to 31 miles on battery power. With electric motors on both axles – it's a Quattro, after all, but a through-the-road hybrid with electronic torque distribution management – the A7 H-Tron uses a hydrogen fuel cell and four (!) H2 tanks to offer about 62 miles per gallon equivalent. Audi says the overall fuel cell stack efficiency is "as high as 60 percent" while the electric motors operate at 95 percent efficiency. Efficiently turning all of that electricity into movement means the A7 Sportback H-Tron Quattro has a total power output of 398.3 pound-feet of torque. The 4,299-pound concept can allegedly go from 0-62 miles per hour in 7.9 seconds and has a top speed of 112 mph. The car's total range is 311 miles. The A7 H-Tron is not the first plug-in hydrogen vehicle concept. That title goes to the Ford HySeries Edge. Mazda also considered putting a hydrogen range extender in the Mazda5 plug-in van. The Audi A7 Sportback h-tron quattro It sprints from 0 to 100 km/h (62.1 mi) in 7.9 seconds and on to a top speed of 180 km/h (111.8 mph). It covers over 500 kilometers (310.7 mi) on one tank of fuel – and its exhaust emits nothing more than a few drops of water: The A7 Sportback h-tron quattro, which Audi is unveiling at the Los Angeles Auto Show 2014, uses a powerful, sporty electric drive with a fuel cell as its energy source that operates in combination with a hybrid battery and an additional electric motor in the rear. The overall electrical system power of 170 kW is transferred to both the front and the rear wheels. This drive configuration makes the emission-free Audi A7 Sportback* a quattro through and through – a new departure in fuel cell cars. "The A7 Sportback h-tron quattro is a genuine Audi – at once sporty and efficient. Conceived as an e-quattro, its two electric motors drive all four wheels," explained Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at Audi. "The h-tron concept car shows that we have mastered fuel cell technology.