Japanese GP Car/Driver weights
Below is the weight of each car following qualifying for the Japanese Grand Prix, sorted by qualifying position.
| Pos | Driver | Team | 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 | 675.0 |
| 10. | 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