Ralf Schumacher drives down the Shanghai International Circuit in Jiading yesterday during free practice.---Shanghai Daily

Anthony Davidson once again staked his claim to a fulltime Formula One race seat with lapping fastest time in both of Friday's practice sessions in Shanghai for the inaugural Chinese Grand Prix.
The BAR's British driver, who will not race on Sunday, topped the timesheets with a best lap of one minute 33.289 seconds. The BAR left rivals trailing on first day of practice with its rising star Jenson Button second in the afternoon in 1:34.174.
Ralf Schumacher celebrated his return to active duty and for Williams with 1m 35.455 seconds, second quickest in the morning.
The German, however, fell to the seventh in 1:34.714 in the second session.
Kimi Raikkonen of McLaren, winner in Belgium last month, was third fastest in 1:34.289 in the afternoon, followed by his teammate David Coulthard.
World champion Michael Schumacher, who clinched an unprecedented seventh drivers' crown in Belgium, was a surprise 15th on the timesheets in the morning. He managed to go up to the seventh overall.
Having failed to win either of the past two races, he should have been keen to return to winning ways and claim the maiden victory at the inaugural Chinese GP.
The 35-year-old, however, seemed not eager to win. He was out of the pits about 25 minutes after the session kicks off, becoming the second from the bottom to run on the circuit.