Gary Paffett fine-tuned a wide number of aero-components yesterday in the first day of testing for McLaren Mercedes at Jerez as well as evaluating different suspension set-ups.

Pedro de la Rosa kicked off the slick evaluation programme for the team today in sunny and hot conditions at the Spanish test circuit.

The Spaniard's best lap came in the cooler morning conditions as he posted a 1:19.061s best on lap seven of 122 completed today. The time was good for second fastest on the day, two-tenths behind pace-setter Sebastian Vettel's Toro Rosso Ferrar that also ran slick tyres.

De la Rosa remains on track Thursday before handing over to Heikki Kovalainen. Championship leader Lewis Hamilton is not scheduled to test this week.