In 2009, the tyre regulations stipulate that the two dry tyre specifications must be visibly distinguishable from each other. At the Brazilian Grand Prix, the soft compound Bridgestone Potenza tyres were marked with green bands on the sidewalls. The wet weather tyre was also marked with a green line in a groove. 

Tyre Choice by Stint*:



Medium or Super Soft (S-Soft) dry, Intermediate or Wet

Scuderia Ferrari          
Giancarlo Fisichella 11th Medium  S- Soft
Kimi Raikkonen       6th  S- Soft Medium  S- Soft

Vodafone McLaren          
Lewis Hamilton       3rd  S- Soft Medium  Medium
Heikki Kovalainen    9th  Medium  Medium  S- Soft S- Soft

BMW Sauber F1             
Robert Kubica        2nd  Medium  Medium  S- Soft
Nick Heidfeld        DNF  S- Soft Medium

Renault F1 Team           
Fernando Alonso      DNF  Medium
Romain Grosjean      13th Medium  Medium  S- Soft

Panasonic Toyota          
Jarno Trulli         DNF  Medium
Kamui Kobayashi      10th Medium  Medium  S- Soft

Scuderia Toro Rosso       
Jaime Alguersuari    14th Medium  Medium  S- Soft
Sebastien Buemi      7th  Medium  Medium  S- Soft

Red Bull Racing           
Mark Webber          1st  Medium  Medium  S- Soft
Sebastian Vettel     4th  Medium  Medium  S- Soft

AT&T Williams             
Nico Rosberg         DNF  Medium  Medium
Kazuki Nakajima      DNF  Medium  Medium

Force India F1 Team       
Adrian Sutil         DNF  Medium
Vitantonio Liuzzi    12th Medium  S- Soft Medium  Medium

Brawn GP F1 Team         
Jenson Button        5th  Medium  Medium  S- Soft
Rubens Barrichello   8th  Medium  Medium  S- Soft S- Soft

*  Teams do not necessarily change tyres at pitstops
** Includes drive-through/stop-go penalties