Photos, scetches and video of latest Audi R8 TDI supercar.

Audi is planning a number of different variants including a new three-door Sportback model.

Here’s a new driving video of three of the hottest supercars on the planet, the Audi R8, Lamborghini Murcielago and the Bugatti Veyron. The video is in German but it’s still worth a look to see these beauties going around a track and to hear the roar of their engines.

Audi will launch the A1 compact car in 2009 at the Frankfurt Auto Show. A Cabriolet version will also be unveiled in October 2011. The future A1 will be placed above the TT, but under the A3, and wants to be the cheapest Audi in the line-up. The A1 Convertible will compete with BMW 1-Series Convertible, Mini Convertible and Volkswagen Eos.

This new sedan car made in Ingolstadt offers a perfect starting point for the engineers and designers with Abt Sportsline. With the AS4, the world’s leading tuner of cars from the Volkswagen group succeeded in creating a car which is in every respect harmonic and sporty, as well as elegant