2009 Audi Q7 Base Sport Utility 4-door 3.6l on 2040-cars

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Audi celebrates diesel milestone with triple-charged RS5 TDI concept

Diesels are typically slower than their gasoline counterparts, but leave it to Audi to turn that notion on its head. After dominating Le Mans and the international endurance racing scene under diesel power for the better part of a decade, the German automaker toyed with the idea of an oil-burning R8 for the road and ultimately made its first performance crossover a diesel. It's made the letters TDI a battle cry, and now it's yelling even louder with the RS5 TDI concept.
Set to be unveiled in a couple of days at the Leipzig Auto Show to celebrate 25 years of the TDI engine, the concept ditches the gasoline-burning 4.2-liter V8 in the production RS5 in favor of a 3.0-liter V6 twin-turbo-diesel with an electric supercharger added on to combat turbo lag. Output comes in at 385 horsepower and 553 pound-feet of torque, which means that while it has 65 fewer horses than the gasoline model, it packs a staggering 236 lb-ft more torque.
The result of the triple-charged madness is a 0-62 time around four seconds flat, trumping the 4.6 seconds for the road-going model. Top speed, of course, is electronically limited to 155 miles per hour, which is a bit of a shame because we bet it'd be a kick to pass a Porsche on the Autobahn in a diesel, now wouldn't it?

Tom Kristensen walks through a perfect lap of Le Mans in Forza 5

One of the best ways of learning a new track, aside from driving it, is to hear someone that's intimately familiar with it give you a good walkthrough. That's just what you'll get here, as the winningest driver in 24 Hours of Le Mans history, Tom Kristensen, walks you through the Circuit de la Sarthe's high-speed, 8.5-mile strip of pavement.
Kristensen is dubbed over scenes of drivers from a Forza Motorsport 5 contest lapping the track at the wheel of an Audi R18 E-Tron Quattro, adding a bit of visual sense to the Danish drivers description of the track.
With the 2014 24 Hours of Le Mans kicking off this weekend, this is just the sort of video you'll want to watch to get you in the mood. Take a look below, and then let us know what you think in Comments.

VW Group exploring F1 options, would likely wait until Ecclestone is out

The real hurdle is that Volkswagen overlord Ferdinand Piech doesn't like Bernie Ecclestone on a personal or professional level. Superbugs. They are antiobiotic-resistant bacteria and viruses, fiends that defy eradication no matter how much counteracting agent you throw at them. Reports that Audi is going to join Formula One? They are the superbugs of rumors; for five years they've been coursing through the blood of motorsport, and no amount of denials or Audi's continued non-presence in F1 has been able to make them go away. Not even a month ago we contracted another bout of it, courtesy of Auto Express, citing sources who said Audi would leave endurance racing and DTM - handing Le Mans over to Porsche, instead of the other way around - and buy either Red Bull or Toro Rosso for an entry in 2016 with an in-house powerplant. Within 24 hours of that story, Audi Sport sent the tweet, "Audi in F1? There rumors keep appearing with regularity since years. It's pure speculation again this time and without any foundation." Now, few things are impossible in F1, but lining up on the grid in 2016 is not far away from needing to be ready tomorrow, in F1 terms, which is why these announcements come long in advance. Honda, you'll recall, gave us almost two years' notice of its F1 reunion and Porsche gave us three years notice about Le Mans. A brand-new report in the BBC says that Audi is using new hire and ex-Ferrari technical director Stefano Domenicali to lead a feasibility study into an F1 program. According to that story, the real hurdle to the foray, however, is that Volkswagen Group overlord Ferdinand Piech doesn't like F1 boss Bernie Ecclestone on a personal or professional level, so one of them would need to leave his position before Audi could say yes, feasibility be damned. Since we're talking about two men who define professional longevity, that day might not come soon. The BBC story goes on to say that Martin Winterkorn, head of the VW Group management board, would like to see the group in F1, and that if it happened it would be with a "car designed and made in Germany." Ladies and gentlemen, you know where to file this one...