Motor racing-Schumacher leads queue to F1 exit

By Alan Baldwin

SAO PAULO, Oct 23 (Reuters) - Michael Schumacher's Formula One swansong was the talk of Sunday's season-ending Brazilian Grand Prix but it was not the only farewell.

Tyre giants Michelin, illustrious engine makers Cosworth and two of the three last remaining tobacco sponsors in the sport also joined Ferrari's seven-times champion in heading for the exit.

Others had said their goodbyes already -- such as Japan's Suzuka circuit, replaced by