From the 2009 season, the FIA is making public the weights of the cars, with their fuel load included, following Saturday's qualifying session.

Below is the weight of each car following qualifying for the Italian Grand Prix, sorted by qualifying position. 

Pos  Driver                             Weight (kg)
 1.  Hamilton     McLaren-Mercedes         653.5
 2.  Sutil        Force India-Mercedes     655.0
 3.  Raikkonen    Ferrari                  662.0
 4.  Kovalainen   McLaren-Mercedes         683.0
 5.  Barrichello  Brawn-Mercedes           688.5
 6.  Button       Brawn-Mercedes           687.0
 7.  Liuzzi       Force India-Mercedes     679.5
 8.  Alonso       Renault                  677.5
 9.  Vettel       Red Bull-Renault         682.0
10.  Webber       Red Bull-Renault         683.0
11.  Trulli       Toyota                   703.0*
12.  Grosjean     Renault                  699.8*
13.  Kubica       BMW-Sauber               697.5*
14.  Fisichella   Ferrari                  690.0*
15.  Heidfeld     BMW-Sauber               697.5*
16.  Glock        Toyota                   709.8*
17.  Nakajima     Williams-Toyota          706.2*
18.  Rosberg      Williams-Toyota          708.6*
19.  Buemi        Toro Rosso-Ferrari       706.0*
20.  Alguersuari  Toro Rosso-Ferrari       706.0*

* Declared weight