The Circuit de Catalunya near Barcelona hosts the Spanish Grand Prix. All the teams have tested extensively there, but changing track temperatures and shifting winds mean that a perfect lap remains tricky.
Requiring excellent aerodynamics and good balance to preserve tyre life, Renault are looking strong, though Michael Schumacher will be looking to illustrate Ferrari's return to form by completing a hat-trick of wins.
With the amount of testing the teams put in at Barcelona, they are usually able to dial in their cars quickly and spend the weekend running close to their absolute performance.