For the 2009 season, the FIA are making public the weights of all cars ahead of the race start to help give an idea of relative fuel loads. The cars that made Q3 are weighed after qualifying, while the weights of the remaining cars must be declared by their teams shortly after the session.
Below is the provisional grid for the Italian Grand Prix with each car's weight.
1. Lewis Hamilton, McLaren, 653.5kg
2. Adrian Sutil, Force India, 655
3. Kimi Raikkonen, Ferrari, 662
4. Heikki Kovalainen, McLaren, 683
5. Rubens Barrichello, Brawn GP, 688.5
6. Jenson Button, Brawn GP, 687
7. Vitantonio Liuzzi, Force India, 679.5
8. Fernando Alonso, Renault, 677.5
9. Sebastian Vettel, Red Bull, 682
10. Mark Webber, Red Bull, 683
11. Jarno Trulli, Toyota, 703
12. Romain Grosjean, Renault, 699.8
13. Robert Kubica, BMW Sauber, 697.5
14. Giancarlo Fisichella, Ferrari, 690
15. Nick Heidfeld, BMW Sauber, 697.5
16. Timo Glock, Toyota, 709.8
17. Kazuki Nakajima, Williams, 706.2
18. Nico Rosberg, Williams, 708.6
19. Sebastien Buemi, Toro Rosso, 706
20. Jaime Alguersuari, Toro Rosso, 706
Source : http://www.formula1.com/news/headlines/2009/9/9917.html
