Fernando Alonso was once again fastest as he topped the timesheet in the final session of free practice ahead of qualifying for Sunday's Singapore Grand Prix.
The Renault driver, who had pipped McLaren's Lewis Hamilton to the fastest lap in second practice, clocked a time of one minute 44:506 seconds.
Brit ace Hamilton finished 0.613 seconds behind his former team-mate in second, while Ferrari's Felipe Massa was third with a time of 1:45.246.
Alonso's team-mate Nelson Piquet took fourth, while Williams driver Nico Rosberg finished fifth.
Times
01 F. Alonso Renault 1:44.506, 19 laps
02 L. Hamilton McLaren 1:45.119, 12 laps
03 F. Massa Ferrari 1:45.246, 16 laps
04 N. Piquet jr. Renault 1:45.249, 17 laps
05 N. Rosberg Williams 1:45.386, 16 laps
06 J. Button Honda 1:45.409, 20 laps
07 R. Kubica BMW 1:45.425, 17 laps
08 M. Webber Red Bull 1:45.450, 21 laps
09 S. Vettel Scuderia Toro Rosso 1:45.477, 18 laps
10 S. Bourdais Scuderia Toro Rosso 1:45.599, 17 laps
11 N. Heidfeld BMW 1:45.689, 19 laps
12 K. Nakajima Williams 1:45.982, 18 laps
13 H. Kovalainen McLaren 1:45.982, 12 laps
14 R. Barrichello Honda 1:46.073, 21 laps
15 T. Glock Toyota 1:46.180, 22 laps
16 J. Trulli Toyota 1:46.221, 18 laps
17 K. Räikkönen Ferrari 1:46.482, 10 laps
18 D. Coulthard Red Bull 1:46.794, 6 laps
19 G. Fisichella Force India F1 1:47.166, 14 laps
20 A. Sutil Force India F1 1:47.727, 19 laps

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