The third practice session at Silverstone would see McLaren's Kimi Raikkonen
fastest over Renault's Fernando Alonso by almost a half a second. The final practice would see the session start with rain a possibility. The first driver out for his installation lap was Jordan's Tiago Monteiro. He would be joined by Raikkonen, Trulli, and team-mate Karthikeyan.

Tiago would be the first driver to set a time, a 1m:27.910. The second Toyota of Ralf Schumacher was also out. But for Raikkonen things would go wrong when his car would stop out on the circuit in the second sector with a mechanical problem after having completed just two laps. Trulli was now fastest with a time of 1m:22.188.

But Montoya would move into the top spot with a time of 1m:22.087. Ralf was in third with a 1m:23.720. Trulli would respond to Juan Pablo's time by going faster, a 1M:21.763. Ralf would improve his time with a 1m:22.354. Alonso would take third from Ralf with a time of 1m:22.328. Sato was now circulating and his first lap would see him in fifth with a time of 1m:22.689. Alonso was on a quick lap and would go fastest with a time of 1m:21.252. BAR's Jenson Button was in sixth with a time of 1m:22.93.

Mark Webber would set his first time, a lap of 1m:23.953, which would see him in eighth with thirty minutes of the session remaining. Alonso would improve his time with a 1m:20.746. Montoya was now in third with a 1m:22.087. Nick Heidfeld's first lap was a 1m:23.232. Mark had improved his time, a 1m:22.683, and was now in sixth. Villeneuve was in eleventh with a 1m:24.497.

Barrichello was in eighth while Button had moved up to now be in fifth with a time of 1m:22.545. Mark and Nick were in seventh and eighth. On his first timed lap Michael Schumacher would set a time of 1m:21.868 to move in third. Villeneuve was now in tenth. Mark and Nick were now ninth and eleventh. Michael would improve to now be in second with a time of 1m:21.365, 0.619 seconds behind Alonso. Third was Trulli, with Montoya, Ralf, Barrichello, Button, and Sato making up the top eight.

the second Renault of Fisichella would take second from Michael with a lap of 1m:20.928. Only the Renault's had been able to set times in the 1m:20's. Mark and Nick were now in tenth and thirteenth. Fisichella would improve hsi time with a 1m:20.848. Red Bull's David Coulthard was down in sixteenth. Massa would move into tenth with a time of 1m:22.598. Karthikeyan would move up the order into eleventh with a time of 1m:22.634 to be one place ahead of Mark Webber. Klein was the only driver yet to set a time, with twenty minutes of the session remaining.

Montoya would take the top place from Alonso with a time of 1m:20.128 but Fernando would quickly respond setting a time of 1m:20.077 to go ahead of the McLaren by 0.051 seconds. Mark and Nick were now in twelfth and fifteenth, with Rubens moving into seventh with a time of 1m:22.419. Coulthard would stop in the second sector his practice over.

Team-mate Klein was now in sixth with a time of 1m:22.218. Button would go third fastest with a time of 1m:20.763. Klein would improve to now be in fifth. Mark would improve to now be in tenth with a time of 1m:22.523. Nick was still struggling been down in sixteenth. Rubens was in eighth with a time of 1m:22.023. Team-mate Michael was now in sixth with a time of 1m:21.283. Trulli and Ralf Schumacher were in seventh and ninth.

In somewhat of a surprise Monteiro was now in ninth with a time of 1m:22.058. Mark and Nick were now both outside the top ten, Mark in eleventh and Nick seventeenth. At the front Trulli was now third with a time of 1m:20.449, setting the quickest final sector.

With five minutes remaining Ralf was now in fourth with a time of 1m:20.524. Michael Schumacher was in seventh with a 1m:20.893 as the finals minutes of the session counted down. Barrichello was in ninth. Klein would split the two Ferrari's in eighth. Both Mark and Nick were on their final runs and Mark would jump up the order to now be in eighth with a time of 1m:21.004. Nick was one place behind in ninth with a time of 1m:21.052, as the session came to a close.

The top ten was Alonso, Montoya, Trulli, Ralf Schumacher, Button, Fisichella, Michael Schumacher, Webber, Heidfeld, and Klein.