Vettel, Webber stay on top in Brazil

Vettel and team-mate Mark Webber had the edge over their McLaren and Ferrari rivals all the way through, but extended their advantage once everyone switched to give the super soft tyres a try.

While Webber was the quicker of the two earlier in the 90-minute session, Vettel found an extra tenth on his quickest lap on the softer compound tyre and dipped into the 1m11s.

Webber was quarter of a second clear of championship leader Fernando Alonso, who was at least back at the sharp end of the time sheet following his engine problem in FP1.

Lewis Hamilton pronounced himself happy with the modifications McLaren has made to its floor and set the fourth quickest time, while team-mate Jenson Button was still complaining of a lack of rear grip and could only manage seventh.

Felipe Massa set the fifth quickest time as both Ferraris vastly improved on their morning's pace, but the Brazilian's session ended half an hour early when he reported a problem with the clutch and stopped on the back straight.

Robert Kubica was sixth, with Nick Heidfeld, Nico Rosberg and Michael Schumacher completing the top 10 behind Button.

Jarno Trulli was fastest of the new cars again in 19th, just four tenths slower than Alguersuari's Toro Rosso. Lucas di Grassi was 21st after reclaiming his car from Jerome D'Ambrosio, while Bruno Senna this time pipped Christian Klien to 22nd - both HRTs beating Timo Glock.

The track was packed in the closing minutes with all 24 cars on track at once. Michael Schumacher and Alguersuari touched as they turned into Turn 1 together, Kamui Kobayashi survived a scare when he almost lost control darting out from behind Heikki Kovalainen's Lotus, and Alguersuari then spun on his way back to the pits.

Pos  Driver         Team                     Time              Laps
 1.  Vettel         Red Bull-Renault         1:11.968            28
 2.  Webber         Red Bull-Renault         1:12.072  + 0.104   34
 3.  Alonso         Ferrari                  1:12.328  + 0.360   36
 4.  Hamilton       McLaren-Mercedes         1:12.656  + 0.688   33
 5.  Massa          Ferrari                  1:12.677  + 0.709   19
 6.  Kubica         Renault                  1:12.882  + 0.914   37
 7.  Button         McLaren-Mercedes         1:13.206  + 1.238   33
 8.  Heidfeld       Sauber-Ferrari           1:13.222  + 1.254   40
 9.  Rosberg        Mercedes                 1:13.333  + 1.365   34
10.  Schumacher     Mercedes                 1:13.346  + 1.378   36
11.  Barrichello    Williams-Cosworth        1:13.520  + 1.552   37
12.  Kobayashi      Sauber-Ferrari           1:13.610  + 1.642   41
13.  Hulkenberg     Williams-Cosworth        1:13.725  + 1.757   39
14.  Sutil          Force India-Mercedes     1:13.741  + 1.773   32
15.  Petrov         Renault                  1:13.818  + 1.850   26
16.  Liuzzi         Force India-Mercedes     1:14.045  + 2.077   37
17.  Buemi          Toro Rosso-Ferrari       1:14.304  + 2.336   33
18.  Alguersuari    Toro Rosso-Ferrari       1:14.578  + 2.610   37
19.  Trulli         Lotus-Cosworth           1:14.984  + 3.016   47
20.  Kovalainen     Lotus-Cosworth           1:15.101  + 3.133   43
21.  di Grassi      Virgin-Cosworth          1:15.433  + 3.465   35
22.  Senna          HRT-Cosworth             1:16.070  + 4.102   42
23.  Klien          HRT-Cosworth             1:16.082  + 4.114   38
24.  Glock          Virgin-Cosworth          1:16.150  + 4.182   35

All Timing Unofficial