Michael Schumacher may well be the fastest taxi driver in Germany after the seven-times world champion shocked a cab driver by taking over the wheel in order to be on time for a flight.

Schumacher, 38, flew into the aerodrome at the Bavarian town of Coburg on Saturday and took a taxi to the village of Gehuelz, 30 kilometres away, to pick up a new puppy - an Australian Shepherd dog called "Ed".

But when the former Formula One ace, plus his wife and two children, caught a taxi back to the airport they were short on time and, afer a polite request, cab driver Tuncer Yilmaz watched in wonder as Schumacher took the wheel.

"I found myself in the passenger seat, which was strange enough, but to have "Schumi" behind the wheel of my cab was incredible," Mr Yilmaz told the Muenchner Abendzeitung.

"He drove at full throttle around the corners and over-took in some unbelievable places."

Mr Yilmaz was well rewarded for the unusual journey - on top of the 60 euros (88 US dollars) fare, he was also given a 100 euros (146 US dollars) tip.

Schumacher's spokesperson Sabine Kehm later confirmed the story.

The German track ace, who now lives in Switzerland, retired from Formula One in 2006 after a glittering career and, despite test drives for his old team Ferarri, has insisted there is no chance of a return to racing.