In 2008, the tyre regulations stipulate that the two dry tyre specifications must be visibly distinguishable from each other. At the Bahrain Grand Prix, the soft compound Bridgestone Potenza tyre was marked with a white line in the second from inside groove. 

Team / Race Driver     Tyre Choice by Stint*:Soft/Medium

Scuderia Ferrari           
Kimi Raikkonen              Soft-Soft-Medium
Felipe Massa                Soft-Soft-Medium

BMW Sauber F1 Team                  
Nick Heidfeld               Soft-Soft-Medium
Robert Kubica               Soft-Soft-Medium

ING Renault F1 Team                 
Fernando Alonso             Soft-Soft-Medium
Nelson Piquet               Medium-Soft-Soft-DNF

AT&T Williams                       
Nico Rosberg                Medium-Soft-Soft
Kazuki Nakajima             Medium-Soft

Red Bull Racing                     
David Coulthard             Soft-Soft-Soft-Medium
Mark Webber                 Soft-Soft-Medium

Panasonic Toyota Racing             
Jarno Trulli                Soft-Soft-Medium
Timo Glock                  Soft-Soft-Medium

Scuderia Toro Rosso                 
Sebastien Bourdais          Medium-Soft-Soft
Sebastian Vettel            Medium-DNF

Honda Racing F1 Team                
Jenson Button               Soft-Soft-Soft-DNF
Rubens Barrichello          Soft-Soft-Medium

Super Aguri F1 Team                 
Takuma Sato                 Soft-Soft-Medium
Anthony Davidson            Soft-Soft-Medium

Force India Formula One             
Adrian Sutil                Soft-Soft-Soft-Medium
Giancarlo Fisichella        Soft-Soft-Medium

Team Vodafone McLaren                    
Lewis Hamilton              Soft-Soft-Medium
Heikki Kovalainen           Soft-Soft-Medium

*  Teams do not necessarily change tyres at pitstops
*  Includes drive through penalties