Alonso timed a best lap of 1 minute, 39.404 seconds across two sessions at the Valencia street circuit course to lead overall F1 leader Jenson Button and Brawn GP teammate Rubens Barrichello.
Alonso, a two-time world champion from Spain, was only cleared to race on Monday when F1’s governing body overturned Renault’s one-race ban stemming from a safety incident at the preceding Hungarian GP.
Renault and Ferrari new-boys Romain Grosjean and Luca Badoer ran slowly. Auto Racing Daily
Badoer, 38, is only driving for Ferrari because German legend Michael Schumacher was not considered fit enough to replace the injured Felipe Massa - a neck problem denying the seven-time world champion a sensational return to the sport.
POS DRIVER ENTRANT TIME 1 Fernando Alonso Renault 01:39.4 2 Jenson Button Brawn-Mercedes 01:40.2 3 Rubens Barrichello Brawn-Mercedes 01:40.2 4 Nico Rosberg Williams-Toyota 01:40.4 5 Kazuki Nakajima Williams-Toyota 01:40.5 6 Adrian Sutil Force India-Mercedes 01:40.6 7 Robert Kubica BMW Sauber 01:40.6 8 Giancarlo Fisichella Force India-Mercedes 01:40.7 9 Sebastian Vettel Red Bull-Renault 01:40.7 10 Heikki Kovalainen McLaren-Mercedes 01:40.7 11 Kimi Raikkonen Ferrari 01:40.7 12 Jarno Trulli Toyota 01:40.8 13 Romain Grosjean Renault 01:40.8 14 Mark Webber Red Bull-Renault 01:41.0 15 Timo Glock Toyota 01:41.0 16 Sebastien Buemi Toro Rosso-Ferrari 01:41.2 17 Nick Heidfeld BMW Sauber 01:41.4 18 Luca Badoer Ferrari 01:42.0 19 Jaime Alguersuari Toro Rosso-Ferrari 01:42.1 20 Lewis Hamilton McLaren-Mercedes 01:43.2

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