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 Bahrain Grand Prix, sorted by qualifying position.
Pos Driver Team Weight (kg)
1. Trulli Toyota 648.5
2. Glock Toyota 643.0
3. Vettel Red Bull-Renault 659.0
4. Button Brawn-Mercedes 652.5
5. Hamilton McLaren-Mercedes 652.5
6. Barrichello Brawn-Mercedes 649.0
7. Alonso Renault 650.5
8. Massa Ferrari 664.5
9. Rosberg Williams-Toyota 670.5
10. Raikkonen Ferrari 671.5
11. Kovalainen McLaren-Mercedes 678.5
12. Nakajima Williams-Toyota 680.9
13. Kubica BMW-Sauber 698.6
14. Heidfeld BMW-Sauber 696.3
15. Piquet Renault 677.6
16. Sutil Force India-Mercedes 679.0
17. Buemi Toro Rosso-Ferrari 678.5
18. Fisichella Force India-Mercedes 652.0
19. Webber Red Bull-Renault 656.0
20. Bourdais Toro Rosso-Ferrari 667.5