Ahead of today's second free practice session, the air temperature is 18 degrees C, and the track temperature is 31 degrees. Thanks to the fact the sun has finally broken through, it is a little warmer than this morning.

The big news this morning, was the two Williams drivers taking first and second on the timesheets, while 2008 World Champion Lewis Hamilton could only manage sixteenth. The question this afternoon is, was this morning's session a fair form guide for this weekend and beyond?

When the lights go green it is the Toyotas that are first out. However, Alonso, Rosberg, Vettel, Webber, Bourdais, Nakajima, Fisichella, Kubica and Buemi are close behind.

Trulli momentarily tops the timesheets, but he is almost instantly demoted by his teammate who posts a 31.466. However, a 30.662 sees Webber go quickest, as Fisichella goes second and Nakajima fourth.

The tyre options this weekend are super-soft and medium, which we will refer to a soft and medium. This morning, only Raikkonen really used the soft to any real affect, while Rosberg's time was set with well-worn mediums.

Sutil goes quickest with a 29.335, however, Rosberg and Kovalainen soon go quicker. It's very busy out there.

A spin from Alonso is proof that the track condition is still far from ideal. One of the Force Indias takes an excursion.

Ten minutes into the session, all but the Brawns are on track, or have been out.

A 28.995 sees Hamilton go tenth, the Englishman improving to third next time around (28.158). Moments later Button posts 28.002 to go quickest, while teammate Barrichello goes thirteenth with 28.703. Raikkonen goes eighth and Massa twelfth.

Jarno Trulli, one of the first drivers to use the soft option in this session, goes quickest overall in the first and third sectors, crossing the line at 27.168 to go quickest. Hamilton consolidates third with a 27.958.

Trulli improves with a 27.050, as Barrichello moves up to sixth (28.215). Meanwhile, the Renaults, BMWs and Toro Rossos languish at the bottom of the timesheets.

Fisichella (softs) goes third with a 27.539, ahead of Button, Hamilton, Kovalainen, Barrichello, Glock, Webber and Rosberg.

Glock (softs) goes quickest in the second and third sectors, crossing the line at 26.689 to take the top spot, demoting his Toyota teammate to second. Almost unnoticed, Vettel goes third in the Red Bull. The German was sidelined for much of this morning's session following a hydraulic pressure problem.

A big lock up sees Kovalainen take to the grass at Turn 1, as Glock improves with a 26.443. Moments later, Rosberg (soft) takes the top spot with a 26.293, improving to 26.142 next time around.

As Massa goes seventh and Webber sixth, Button gets all out of shape in the Brawn, kicking up a big cloud of dust. Shortly afterwards, teammate Barrichello has a similar moment t Turn 1.