Kubica stays on top in practice 2

The 21-year-old Pole topped the highly uneventful session on the Montreal circuit in 1:19.965 - although that was over half a second slower than the time he set in the cooler morning session.

Defending world champion Fernando Alonso was second fastest for Renault, just over one tenth of a second slower than Kubica, with Williams test driver Alex Wurz third.

Behind them, Kimi Raikkonen showed flashes of promise with the fourth quickest time for McLaren and Honda test driver Anthony Davidson was fifth.

The final chicane continued to cause problems for the drivers, despite the track temperature being five degrees higher than in the opening session.

Fourteen drivers in total missed their braking point and chose to straight-line the corner, rather than risk hitting 'champions wall' as the barrier on the outside of the corner became known in 1999, when it claimed the races of Michael Schumacher, Jacques Villeneuve and Damon Hill.

The most significant of these were Ferrari driver Schumacher himself and McLaren's Juan Pablo Montoya, who ended up well down in 15th and 17th places.

Both went off the track at the first corner on their next laps, although neither suffered any damage to their cars.

There was bad fortune for Jarno Trulli though, as the Italian's Toyota slowed suddenly with nine minutes of the session still to run, forcing him back to the pits.

Pos  Driver        Team                     Time              Laps
 1.  Kubica        BMW-Sauber          (M)  1:16.965           33
 2.  Alonso        Renault             (M)  1:17.095 + 0.130   15
 3.  Wurz          Williams-Cosworth   (B)  1:17.337 + 0.372   21
 4.  Raikkonen     McLaren-Mercedes    (M)  1:17.490 + 0.525   10
 5.  Davidson      Honda               (M)  1:17.627 + 0.662   32
 6.  Fisichella    Renault             (M)  1:17.805 + 0.840   21
 7.  Webber        Williams-Cosworth   (B)  1:17.848 + 0.883   13
 8.  Liuzzi        Toro Rosso-Cosworth (M)  1:18.009 + 1.044   18
 9.  Heidfeld      BMW-Sauber          (M)  1:18.015 + 1.050   13
10.  Villeneuve    BMW-Sauber          (M)  1:18.035 + 1.070   14
11.  Doornbos      Red Bull-Ferrari    (M)  1:18.201 + 1.236   32
12.  Barrichello   Honda               (M)  1:18.279 + 1.314   16
13.  Button        Honda               (M)  1:18.429 + 1.464   18
14.  Albers        MF1-Toyota          (B)  1:18.503 + 1.538   20
15.  M.Schumacher  Ferrari             (B)  1:18.549 + 1.584   17
16.  R.Schumacher  Toyota              (B)  1:18.614 + 1.649   23
17.  Montoya       McLaren-Mercedes    (M)  1:18.761 + 1.796   14
18.  Klien         Red Bull-Ferrari    (M)  1:18.865 + 1.900   15
19.  Trulli        Toyota              (B)  1:18.868 + 1.903   17
20.  Speed         Toro Rosso-Cosworth (M)  1:18.907 + 1.942   21
21.  Rosberg       Williams-Cosworth   (B)  1:19.048 + 2.083   10
22.  Massa         Ferrari             (B)  1:19.099 + 2.134   15
23.  Mondini       MF1-Toyota          (B)  1:19.138 + 2.173   24
24.  Coulthard     Red Bull-Ferrari    (M)  1:19.313 + 2.348   15
25.  Jani          Toro Rosso-Cosworth (M)  1:19.541 + 2.576   28
26.  Sato          Super Aguri-Honda   (B)  1:19.624 + 2.659   22
27.  Yamamoto      Super Aguri-Honda   (B)  1:20.197 + 3.232   26
28.  Monteiro      MF1-Toyota          (B)  1:20.262 + 3.297   18
29.  Montagny      Super Aguri-Honda   (B)  1:21.434 + 4.469   22

All Timing Unofficial