The opening Friday practice for the 2008 Canadian Grand Prix would see the AT&T Williams drivers Nico Rosberg and Kazuki Nakajima complete forty four laps with Kazuki finishing ahead of Nico.

Kazuki would finish in ninth with a best lap time of 1m:18.971. Nico was down in eleventh with a time of 1m:19.093, just a tenth behind his team-mate. The session was run under damp conditions with the circuit drying out during the session. Nico was twice fastest in the session but it came down to being on the track at the right time determined your time.

Pos  Driver        Team                      Time     Laps
 1.  Massa         Ferrari              (B)  1:17.553 14
 2.  Kubica        BMW Sauber           (B)  1:17.809 12
 3.  Kovalainen    McLaren-Mercedes     (B)  1:18.133 10
 4.  Heidfeld      BMW Sauber           (B)  1:18.182 13
 5.  Raikkonen     Ferrari              (B)  1:18.292 12
 6.  Hamilton      McLaren-Mercedes     (B)  1:18.303 8
 7.  Webber        Red Bull-Renault     (B)  1:18.712 11
 8.  Coulthard     Red Bull-Renault     (B)  1:18.809 12
 9.  Nakajima      AT&T Williams-Toyota (B)  1:18.971 24
10.  Alonso        Renault              (B)  1:19.005 13
11.  Rosberg       AT&T Williams-Toyota (B)  1:19.093 20
12.  Vettel        Toro Rosso-Ferrari   (B)  1:19.228 21
13.  Glock         Toyota               (B)  1:19.346 28
14.  Trulli        Toyota               (B)  1:19.568 31
15.  Fisichella    Force India-Ferrari  (B)  1:19.815 16
16.  Sutil         Force India-Ferrari  (B)  1:19.888 15
17.  Piquet        Renault              (B)  1:20.091 23
18.  Barrichello   Honda                (B)  1:20.173 17
19.  Bourdais      Toro Rosso-Ferrari   (B)  1:20.541 16
20.  Button        Honda                (B)  1:21.542 17