Jerez (Spain):Ralf Schumacher has indicated that his Formula One career could be nearing its end.
The German, without a team since leaving Toyota at the end of the season, had a luckless day at Jerez testing for Team Force India on Thursday.
"It's possible that that was my last drive in a Formula One car," he said after his one-off appearance for the team.
The 32-year-old veteran said he would rather not drive in Formula One if he could not find a team with promise. The German media had billed Schumacher's Jerez appearance as a last-ditch effort to save his beleaguered career.
But Schumacher said he was testing for Indian multi-millionaire Vijay Mallya, who owns Force India, as a "friendly service" to the team which last year ran under the name Spyker.
Schumacher twice left the circuit and was off the pace of Italian Vitantonio Liuzzi, one of five possible candidates for the two race seats who had been invited for tests this week.
Meanwhile, brother Michael, 38, who retired a year ago, was again in action testing for Ferrari.
The seven-time world champion was eighth fastest, but 0.554 seconds slower than British driver Lewis Hamilton in a McLaren.
BMW Sauber driver Robert Kubica of Poland was fastest of the day, ahead of Hamilton and Ferrari's Fel ipe Massa of Brazil.