From the 2009 season, the FIA is making public the weights of the cars, with their fuel load included, following Saturday's qualifying session.
Below is the weight of each car following qualifying for the Belgian Grand Prix, sorted by qualifying position. Pos Driver Weight (kg)
1. Fisichella Force India-Mercedes 648.0
2. Trulli Toyota 656.5
3. Heidfeld BMW-Sauber 655.0
4. Barrichello Brawn-Mercedes 644.5
5. Kubica BMW-Sauber 649.0
6. Raikkonen Ferrari 655.0
7. Glock Toyota 648.5
8. Vettel Red Bull-Renault 662.5
9. Webber Red Bull-Renault 658.0
10. Rosberg Williams-Toyota 670.0
11. Sutil Force India-Mercedes 678.5*
12. Hamilton McLaren-Mercedes 693.5*
13. Alonso Renault 684.4*
14. Button Brawn-Mercedes 694.2*
15. Kovalainen McLaren-Mercedes 697.0*
16. Buemi Toro Rosso-Ferrari 685.0*
17. Alguersuari Toro Rosso-Ferrari 704.5*
18. Nakajima Williams-Toyota 706.1*
19. Grosjean Renault 704.7*
20. Badoer Ferrari 691.5*
* declared weight