Having seen their drivers finish in thirteenth and seventeenth positions after Friday practice the Williams F1 would be hoping for an improvement in the lead-up to qualifying for the 2012 Brazilian Grand Prix. With the weather conditions at the track very hot and sticky there were concerns that rain would play a part in the qualifying session. Pirelli had their hard and medium tyres for the weekend. With the start of the session it would be Kovalainen out first followed by a rush of drivers with Pastor Maldonado coming out first for Williams. Bruno would come out joining the likes of Hamilton, Webber, Raikkonen, Massa, and Button. The drivers would pit after their installation laps with the last driver yet to come out would be Kobayashi. Both Williams drivers would pit after one lap with the track now covered by cloud.

Vettel and both Mercedes cars would continue with Rosberg first to set a time with a 1m:20.153 followed by Schumacher with a 1m:22.570. Kobayashi was now out on the track as Rosberg set a 1m:15.308 followed by Schumacher with a 1m:15.034 to go fastest. Kobayashi would set a 1m:15.527 to be third. Perez was next out with fifty minutes remaining, joined by Raikkonen. Kobayashi would improve to be second with a 1m:15.158 as both McLaren's took to the track. Rosberg would also improve with a 1m:14.955 to be fastest. Both Marussia cars were out on the track joined by Hulkenberg and Grosjean. A big plume of smoke would come from Raikkonen's Lotus seeing the car coast off the track with no drive. Kobayashi and both Mercedes cars would pit with Kobayashi returning. Hamilton was now fastest with a 1m:14.552 but Button would move ahead with a 1m:14.419 to be fastest.

Bruno Senna was out on the track for Williams with Hulkenberg now fifth followed by Perez, Kobayashi, Glock, Pic, and Grosjean in tenth. Grosjean would improve to be fourth, 1m:14.999, as both McLaren's continued on quicker laps. Pastor was now out with forty two minutes remaining. Hamilton would now be fastest with a 1m:14.184 but Button would move ahead with a 1m:13.917 to be fastest. Bruno would run wide at Turn one after a lockup. Hulkenberg was now third, 1m:14.588, with Pastor now fifth, 1m:14.814. This would become sixth as Grosjean moved up to third with a 1m:14.575. Everyone was on the hard tyre for their early runs. Bruno was down in thirteenth with a 1m:15.497. Both McLaren's were in the 1m:13s with Button setting a 1m:13.858 and Hamilton a 1m:13.960. Vettel was in fifth followed by Webber and Pastor. But Pastor would improve with a 1m:14.427 to be third.

Bruno had improved to be tenth, 1m:15.020, but he was over one second off the quickest time. Vettel would improve to be third with a 1m:14.135. Both McLaren's had pitted as Vettel went fastest in sector two. Vettel was now second with a 1m:13.914. Pastor was also on an improved lap setting a 1m:14.387 but would remain fourth. Webber would move ahead of Pastor with a 1m:14.263 with Bruno tenth. Pastor would pit with thirty four minutes remaining. Vettel had also pitted joined by Bruno. Both Ferrari's were now out on the track with Alonso setting a 1m:14.863 to be ninth but Massa would take this spot with a 1m:14.769. The track was now quite with only a few cars out as Rosberg set a 1m:14.678 to be ninth. Massa would move up to be sixth, 1m:14.401 while for Williams Pastor would say that his car was much better than yesterday. Alonso was now in seventh with a 1m:14.416 as Massa again improved with a 1m:14.218 to be fourth.

Button was back out on the track while for Williams Pastor was now seventh and Bruno thirteenth. More drivers were returning to the track with twenty five minutes remaining, including Bruno and Pastor. Quickly the track was very busy with jsut three cars still in their pits including both Mercedes cars. Kobayashi would pit briefly while Alonso would also come back in. Button would also pit joined by Massa. The HRT cars were slowest with Raikkonen having not set a time due to his engine failure. Schumacher would be the first driver to come out on the medium tyre followed by Rosberg. Bruno would spin exiting Turn thirteen on his way up the hill to the start finish straight and was almost collected by Schumacher and he would pit. Rosberg would set a 1m:14.126 to be fifth using the medium tyre. Schumacher was now seventh with a 1m:14.347 as the track again became quite with only Rosberg out on the track.

Rosberg would pit with thirteen minutes remaining it would be expected that the drivers would start their qualifying simulations. Button was fastest from Vettel, Hamilton, Massa, Webber, Rosberg, Schumacher, Alonso, Pastor, and Di Resta tenth. Vergne would be first back out joined by Perez, Hulkenberg, and Grosjean. Button was also back out joined by Alonso. More drivers were coming out for their medium tyre runs as Vergne improved to be sixteenth, 1m:15.108. Hulkenberg would go fastest with a 1m:13.623 while team-mate Di Resta would go fastest with a 1m:13.617 but Button would again be fastest with a 1m:13.192. Grosjean was up to second, 1m:13.420, with Pastor now twelfth and Bruno sixteenth. Webber was up to second, 1m:13.385, while Alonso was sixth with a 1m:13.691. Massa was now seventh with Vettel eighth. Vettel would pit as Pastor moved up to seventh with a 1m:13.700 but Alonso would move ahead with a 1m:13.691.

Hamilton was now up in fifth, 1m:13.533, while Hulkenberg had dropped to sixth, 1m:13.602. Pastor was now eighth while Bruno was seventeenth but on a quicker lap. Vettel would return to the track as Bruno improved to be eleventh, 1m:13.948. Button would set a 1m:13.188 after going faster in sector one and three. Hulkenberg and both Ferrari's would pit joined by Pastor. Vettel would move up to second, 1m:13.245, seeing Pastor drop to ninth while Bruno remained eleventh. Hamilton was now fourth with a 1m:13.389. The session would come to a close with Button still fastest from Vettel, Webber, Hamilton, Grosjean, Di Resta, Hulkenberg, Alonso, Pastor, Massa in tenth and Brno eleventh. For Williams it was a change of the order with Pastor moving ahead of Bruno but both Williams drivers had improved their positions over their Friday practice efforts. For qualifying there was a good chance of seeing both drivers make it into the final period of qualifying.

Pos  Driver         	 Team		       Time      Laps
 1.  Jenson Button       McLaren-Mercedes      1m13.188s 22
 2.  Sebastian Vettel    Red Bull-Renault      1m13.245s 21
 3.  Mark Webber         Red Bull-Renault      1m13.385s 25
 4.  Lewis Hamilton      McLaren-Mercedes      1m13.389s 17
 5.  Romain Grosjean     Lotus-Renault         1m13.420s 24
 6.  Paul di Resta       Force India-Mercedes  1m13.486s 21
 7.  Nico Hulkenberg     Force India-Mercedes  1m13.602s 22
 8.  Fernando Alonso     Ferrari               1m13.691s 15
 9.  Pastor Maldonado    Williams-Renault      1m13.700s 20
10.  Felipe Massa        Ferrari               1m13.712s 17
11.  Bruno Senna         Williams-Renault      1m13.948s 20
12.  Nico Rosberg        Mercedes              1m14.126s 25
13.  Sergio Perez        Sauber-Ferrari        1m14.190s 26
14.  Kamui Kobayashi     Sauber-Ferrari        1m14.192s 21
15.  Michael Schumacher  Mercedes              1m14.347s 24
16.  Daniel Ricciardo    Toro Rosso-Ferrari    1m14.687s 21
17.  Jean-Eric Vergne    Toro Rosso-Ferrari    1m14.972s 19
18.  Vitaly Petrov       Caterham-Renault      1m15.159s 22
19.  Heikki Kovalainen   Caterham-Renault      1m15.707s 21
20.  Timo Glock          Marussia-Cosworth     1m15.763s 23
21.  Charles Pic         Marussia-Cosworth     1m16.059s 21
22.  Pedro de la Rosa    HRT-Cosworth          1m16.198s 15
23.  Narain Karthikeyan  HRT-Cosworth          1m16.793s 18
24.  Kimi Raikkonen      Lotus-Renault         no time   3