After a difficult Friday practice for the 2008 French Grand prix the AT&T Williams team would see Nico Rosberg finish fourth fastest in the final practice session. Team-mate Kazuki Nakajima would struggle get any extra pace from his FW30. He would finish in a disappointing fifteenth. Nico would be among several drivers who would set their quick times using the softer option of tyre.

Pos  Driver        Team                      Time     Laps
 1.  Piquet        Renault              (B)  1:15.750 19
 2.  Webber        Red Bull-Renault     (B)  1:15.759 14
 3.  Vettel        Toro Rosso-Ferrari   (B)  1:15.827 21
 4.  Rosberg       AT&T Williams-Toyota (B)  1:15.974 17
 5.  Raikkonen     Ferrari              (B)  1:16.003 18
 6.  Trulli        Toyota               (B)  1:16.147 20
 7.  Hamilton      McLaren-Mercedes     (B)  1:16.182 16
 8.  Bourdais      Toro Rosso-Ferrari   (B)  1:16.235 18
 9.  Massa         Ferrari              (B)  1:16.256 17
10.  Coulthard     Red Bull-Renault     (B)  1:16.282 18
11.  Glock         Toyota               (B)  1:16.344 20
12.  Alonso        Renault              (B)  1:16.437 20
13.  Kovalainen    McLaren-Mercedes     (B)  1:16.545 16
14.  Kubica        BMW Sauber           (B)  1:16.617 20
15.  Nakajima      AT&T Williams-Toyota (B)  1:16.644 16
16.  Button        Honda                (B)  1:16.651 20
17.  Barrichello   Honda                (B)  1:16.658 17
18.  Heidfeld      BMW Sauber           (B)  1:16.687 19
19.  Fisichella    Force India-Ferrari  (B)  1:17.365 23
20.  Sutil         Force India-Ferrari  (B)  1:17.612 21