2005 Audi A6 Quattro Base Sedan 4-door 3.2l 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?

Electric turbos promise big performance and efficiency gains in the near future

An electric turbo system boosts efficiency between 15 and 20 percent, according to Audi.
Turbochargers, like acoustic guitars, use moving air to create magic. And electric turbochargers, like electric guitars, provide the ability to amp up that magic to amazing new levels.

Audi S1 nearly ready to rocket euros out of your pocket

Audi was out testing its upcoming S1 on the streets of Germany when our trusty spy photographers snapped the new, all-wheel-drive hot hatch that's set to succeed the limited-edition A1 Quattro.
Unlike the A1 Quattro, the S1 should sport a much less aggressive look overall. As shown in the spy shots, its wheel wells lack the meaty flairs of its predecessor while its rear wing is much more subdued. The wheels are more in line with what we expect from Audi's S models and its higher ride height is more conducive to common things like steep driveways and speed bumps that the 333-unit A1 Quattro might not encounter.
According to our spies, the S1 should hit the European market with anywhere from 220 to 250 horsepower, making it considerably more potent than competitors like the Ford Fiesta ST or Polo GTI from its parent company, Volkswagen (although it'll likely arrive at a considerably higher price than either of those pocket rockets). On the high end, that's roughly equal to the 252 ponies generated by the 2.0-liter, turbocharged four in the A1 Quattro