Raikkonen stays on top in practice 2

In contrast to this morning's session - which Raikkonen commanded virtually throughout - second practice saw plenty of changes at the top of the timesheets.

The McLarens went first and second early on, Alonso two tenths faster than Hamilton, before Massa moved ahead with a 1:34.043 approaching the mid-point of the session.

Alonso responded with a 1:33.784 lap, while Raikkonen moved up the order to second shortly afterwards, having languished outside the top ten following his first run.

Then, with 15 minutes remaining, Hamilton used the softer Bridgestone option to hit the front, 0.2 seconds quicker than Alonso, but only briefly before Raikkonen - on the same compound - beat his time by 0.013 seconds.

A late improvement by Robert Kubica put the BMW third ahead of Massa, who ran wide at Turn 4 on his soft tyre lap.

Alonso completed the top five, having stayed on hard tyres at the end of the session.

Jenson Button suffered what appeared to be an engine failure at the one hour mark - huge flames erupting from the back of the Honda as it accelerated out of Turn 2.

The closely-following Massa had a spin on fluids dropped from Button's car, but rejoined safely. Button, however, looks set to require an engine change.

Williams showed promising form again, with Alex Wurz and Nico Rosberg sixth and eighth quickest, despite the latter having a couple of trips off the road.

Tenth fastest Jarno Trulli also left the track - spinning at Turn 4 - while his teammate Ralf Schumacher nearly tangled with Scott Speed's Toro Rosso at the first corner.

Red Bull improved on their morning form, with David Coulthard ninth quickest, although Mark Webber had a spin at Turn 10 and was only 14th.

Several drivers became frustrated by traffic during the session, with both Trulli and Giancarlo Fisichella shaking their fists at slower cars, and Raikkonen raising a middle finger in the direction of a Toro Rosso.

Pos  Driver        Team                     Time           Laps
 1.  Raikkonen     Ferrari              (B) 1:33.527         22
 2.  Hamilton      McLaren-Mercedes     (B) 1:33.540 + 0.013 33
 3.  Kubica        BMW Sauber           (B) 1:33.732 + 0.205 37
 4.  Massa         Ferrari              (B) 1:33.772 + 0.245 28
 5.  Alonso        McLaren-Mercedes     (B) 1:33.784 + 0.257 30
 6.  Wurz          Williams-Toyota      (B) 1:33.973 + 0.446 26
 7.  Heidfeld      BMW Sauber           (B) 1:34.076 + 0.549 34
 8.  Rosberg       Williams-Toyota      (B) 1:34.189 + 0.662 34
 9.  Coulthard     Red Bull-Renault     (B) 1:34.359 + 0.832 32
10.  Trulli        Toyota               (B) 1:34.366 + 0.839 33
11.  Barrichello   Honda                (B) 1:34.391 + 0.864 28
12.  Kovalainen    Renault              (B) 1:34.585 + 1.058 33
13.  Davidson      Super Aguri-Honda    (B) 1:34.595 + 1.068 29
14.  Webber        Red Bull-Renault     (B) 1:34.677 + 1.150 24
15.  Fisichella    Renault              (B) 1:34.796 + 1.269 34
16.  Sato          Super Aguri-Honda    (B) 1:35.001 + 1.474 35
17.  Liuzzi        Toro Rosso-Ferrari   (B) 1:35.268 + 1.741 38
18.  R.Schumacher  Toyota               (B) 1:35.427 + 1.900 29
19.  Sutil         Spyker-Ferrari       (B) 1:35.582 + 2.055 31
20.  Speed         Toro Rosso-Ferrari   (B) 1:35.687 + 2.160 34
21.  Albers        Spyker-Ferrari       (B) 1:35.835 + 2.308 30
22.  Button        Honda                (B) 1:36.079 + 2.552 19

All Timing Unofficial