The third practice session for the Turkish Grand Prix would see both BMW WilliamsF1 drivers finish in the top ten with Nick and Mark in sixth and seventh positions. For Nick this was a marked improvement after his poor times on the Friday.

The third practice session would get under way with the Jordan of Tiago Monteiro coming out first. he would be joined by Minardi's Robert Doornbos and Jordan team-mate Narain Karthikeyan. Joining them were the Minardi of Christijan Albers and the McLaren of Kimi Raikkonen.

It would be a very quite start with no one having set a time with twenty five minutes of the session remaining. Both the Sauber's of Massa and Villeneuve would come out for their installation laps. Michael Schumacher would come out and was straight to business setting a time of 1m:32.249. He would improve this time with a 1m:31.577.

The second driver to set a time would be Albers with a 1m:36.590. He would be beaten by Doornbos with a 1m:34.468. Michael would lower his time even further with a 1m:30.094. Ralf Schumacher had also completed several installation laps with twenty minutes of the session remaining. Michael would drop below 1m:30 seconds with a 1m:29.642.

On his first flying lap Ralf would move into second with a time of 1m:30.295, 0.653 behind Michael. Both Renault's had completed their installation lap, joined by the second Ferrari of Barrichello. Ralf would go fastest with a 1m:28.993. Barrichello would move into third, 1m:31.861. Alonso was on a quick lap and would go fastest with a time of 1m:27.819. Team-mate Fisichella was now in fourth with a 1m:30.169.

Rubens would now be in fourth with a time of 1m:30.038 but he would be pushed down one spot when Fisichella moved into second with a 1m:28.693. The slowest driver was Monteiro with a 1m:37.334. Red Bull's Christian Klein was out on his installation lap. Monteiro would set a time of 1m:31.195 to be in sixth. The second Red Bull of David Coulthard was also out on the circuit. Klein would go eighth fastest with a time of 1m:31.964.

Both the BMW WilliamsF1 drivers, Nick Heidfeld and Mark Webber, had also come out for their installation lap. Klein was now in fourth with a 1m:29.549 with just over ten minutes left in the session. Trulli was also out. On his first quick lap Raikkonen would go second fastest with a time of 1m:28.303. Coulthard was in ninth with a 1m:31.207.

Nick's first times lap would see him in seventh with a 1m:29.897. Trulli was slowest with a 1m:33.095. Mark's first lap would see him one place ahead of Nick in seventh with a time of 1m:29.772 but Coulthard would push him down the order. Nick would improve his time with a 1m:29.140 to be in seventh. Trulli was now in fifth with a 1m:28.847. Mark was now in sixth with a 1m:28.883. Nick was now down in ninth.

Massa would push Nick down into tenth but on his next lap Nick would jump into third with a time of 1m:28.516. Back at the front Kimi was now fastest with a time of 1m:27.523. Button was now in third with a 1m:28.469. Mark would move ahead of Nick with a 1m:28.484. Both Mark and Nick were now in sixth and seventh as Coulthard, Trulli, and Button were now in third through to fifth positions.

Kimi had lowered his time with a 1m:27.134. Nick was now in third with a 1m:28.035, 0.901 behind Kimi. But on his first quick lap Montoya would move into second with a time of 1m:27.804. Button would take this spot with a time of 1m:27.330. Nick would move back into third with a1m:27.471. Mark was now down in eighth. Michael Schumacher was in twelfth.

Button was now fastest with a time of 1m:27.031. Team-mate Sato would move into fourth. Alonso was now in second with a 1m:27.119 and Kimi in third. Nick and Mark were in fifth and sixth. But in the closing minute it would be Montoya who would go fastest with a time of 1m:26.857. With the end of the session the order was Button, Alonso, Raikkonen, Sato, Heidfeld, Webber, Montoya, Fisichella, Coulthard, Massa, Klien, Ralf Schumacher, Trulli, Michael Schumacher, Villeneuve, Barrichello, Monteiro, Albers, Doornbos and Karthikeyan.