Button fastest in session overshadowed by Buemi incident

Jenson Button was fastest in a incident-packed first practice session for the 2010 Chinese Grand Prix.

Nico Rosberg was second for Mercedes – less than a tenth of a second slower that the reigning world champion, with Lewis Hamilton rounding off the top three.

The session with be remembered for two major events. Firstly, question marks continue to surround the reliability of Ferrari, after Fernando Alonso was forced to stop at turn 6 with flames evident from the exhausts.

The drama did not end there, however, with Toro Rosso’s Sebastien Buemi suffering a horrendous accident on Shanghai’s back straight, with 75 minutes of the session gone.

The suspension of Buemi’s STR5 appeared to shatter in the braking zone, sending the young Swiss driver flying off the circuit. As a result, team-mate Jaime Alguersuari was withdrawn from the remainder of the session.

Pos Driver         Team          Time      Gap    Laps
1.  Button         McLaren       1:36.677           15
2.  Rosberg        Mercedes      1:36.748  +0.071   17
3.  Hamilton       McLaren       1:36.775  +0.098   19
4.  Vettel         Red Bull      1:37.509  +0.832   14
5.  Kubica         Renault       1:37.601  +0.924   20
6.  Petrov         Renault       1:37.716  +1.039   17
7.  Schumacher     Mercedes      1:37.745  +1.068   25
8.  Webber         Red Bull      1:37.980  +1.303   17
9.  Sutil          Force India   1:38.008  +1.331   13
10. Massa          Ferrari       1:38.098  +1.421   19
11. Alguersuari    Toro Rosso    1:38.161  +1.484   19
12. Kobayashi      Sauber        1:38.375  +1.698   21
13. de la Rosa     Sauber        1:38.421  +1.744   19
14. Hulkenberg     Williams      1:38.569  +1.892   20
15. di Resta       Force India   1:38.618  +1.941   26
16. Barrichello    Williams      1:38.678  +2.001   17
17. Buemi          Toro Rosso    1:39.939  +3.262    5
18. Trulli         Lotus         1:41.531  +4.854   22
19. Kovalainen     Lotus         1:41.779  +5.102   23
20. Glock          Virgin        1:41.830  +5.153   20
21. di Grassi      Virgin        1:42.181  +5.504   27
22. Senna          HRT           1:43.875  +7.198   23
23. Chandhok       HRT           1:43.949  +7.272   20
24. Alonso         Ferrari       no time             6