Ingolstadt, Germany  - Audi is planning to revive its microcar the A2 as a sport model with a high roof to round off the compact A1 and A3 model segments, the German auto magazine Auto Bild reports.

A Sportback version with a longer rear is also being planned for 2014, the magazine said.

An Audi spokesman declined to comment on the Bild report, but Audi CEO Rupert Stadler said earlier: "We are looking at different scenarios including a new A2."

Hamburg  - Even though car air conditioners (AC) work overtime during the summer, they should also be switched on during winter to remove damp air from the cockpit and prevent the windscreen from fogging-up, manufacturers recommend.

The air in the vehicle is not only heated up, but also dried as the defrost function helps clear the windscreen. Many car heating systems automatically engage the air conditioner in the defrost position. But if the car has no automatic climate control, the

defrost position should be adjusted manually.

A car AC is basically designed to move heat from the car interior to the exterior similar to a refrigerator.

Hamburg, Germany  - Ever wonder how hundreds of ants are able to go up and down a narrow twig without bumping into each other?

A team of German scientists want to find out how ants avoid collisions so that they can apply the same principles to cars on the motorways.

The scientists built an ingenious super "ant farm" complete with roads and bridges and a veritable city of ants. Then they observed the traffic patterns of the ants and fed their findings in to a computer.

The Dresden Institute of Technology collective intelligence expert Dirk Helbing and his team set up an ant highway with two routes of different widths from the nest to some sugar syrup, according to their findings, published in New Scientist.

Hamburg - Both Arsenal and Real Madrid needed 1-0 wins to book their places in the last 16 of the Champions League Tuesday while a draw was sufficient for Manchester United to ensure their berth in the knockout stages.

Arsenal put a torrid week which saw William Gallas stripped of the captaincy and Arsene Wenger's side crash 3-0 at Manchester City behind them, registering a solid performance to beat Dynamo Kiev 1-0 thanks to a late Nicklas Bendner score.

Kiev finished the game with 10 men after Olexandr Aliyev received a straight red card for trying to move the referee away from the ball as he wanted to take a free-kick quickly.

Leverkusen, Germany - Bayer has agreed to settle US charges by paying 97.5 million dollars without an admission of guilt, the German chemicals and pharmaceuticals group said Tuesday.

The US Department of Justice had brought proceedings against the company over its incentives for mail-order sales from 1998 to 2003 of glucose meters, which are used by diabetics to test themselves several times a day.

Hamburg  - The German Bundesliga is making more money from jersey sponsorship than another other football league in Europe, the European Jersey Report
2008/09 survey carried by the market research group Sport und Markt and released Tuesday has revealed.

The 18 clubs in Germany's top flight reaped a total of 102.9 million euros (130.5 million dollars) for the current season from jersey sponsorship, the first time the Bundesliga has broken through the 100-million-euro barrier.