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 Japanese Grand Prix, sorted by qualifying position.
Pos Driver Weight (kg) 1. Vettel Red Bull-Renault 658.5 2. Trulli Toyota 655.5 3. Hamilton McLaren-Mercedes 656.0 4. Sutil Force India-Mercedes 650.0 5. Barrichello Brawn-Mercedes 660.5 6. Heidfeld BMW-Sauber 660.0 7. Button Brawn-Mercedes 658.5 8. Raikkonen Ferrari 661.0 9. Kovalainen McLaren-Mercedes 675.010. Buemi Toro Rosso-Ferrari 665.4*11. Rosberg Williams-Toyota 684.5*12. Alonso Renault 689.5*13. Kubica BMW-Sauber 686.0*14. Glock Toyota -15. Alguersuari Toro Rosso-Ferrari 682.5*16. Fisichella Ferrari 661.5*17. Nakajima Williams-Toyota 695.7*18. Grosjean Renault 691.8*19. Liuzzi Force India-Mercedes 682.5*20. Webber Red Bull-Renault -* declared weight