McLaren and Ferrari moved to Portugal's new Algarve circuit this week, where tester Garry Paffett drove McLaren's 2009-spec test car

McLaren were fastest on Monday and Tuesday with the distinctive wide front wing, with Pedro de la Rosa taking over on Tuesday

While Lewis Hamilton continues his promotional duties, Ferrari had world championship runner-up Felipe Massa on hand in the Algarve

Test driver Luca Badoer ran into trouble while testing on Tuesday, being forced to stop on the track with a problem

Double world champion Fernando Alonso (right) takes a break from testing duties with Renault to do a charity karting event in Madrid

Last week in Jerez, Alonso and F1's other big names got back to work following a break after the season-ending Brazilian GP

Alonso joins his Renault team for winter testing in southern Spain, saying he enjoyed using the new slick tyres

Massa returns from a break to test, after missing out on the title by one point to Lewis Hamilton, who was not at the test

Team-mate Kimi Raikkonen, who joined Massa at Jerez, discusses the new slick tyres with some Bridgestone engineers

And it is Raikkonen who is the faster Ferrari driver on the track - more than a second ahead of the Brazilian

But Toro Rosso claim the essentially meaningless honour of the three fastest times - with rookie Sebastian Buemi ahead of Japanese Takuma Sato and 2008 driver Sebastien Bourdais