LONDON - McLaren driver Lewis Hamilton set the pace in his first Formula One test since the season-ending Brazilian Grand Prix in October.
The 22-year-old Briton lapped the Jerez circuit in southern Spain with a best time of one minute, 19.371 seconds, ahead of compatriot David Coulthard ina Red Bull and Ferrari's Felipe Massa.
Ferrari's new champion Kimi Raikkonen was fourth on the timesheets.
Coulthard was one of several drivers trying out experimental slick tyres for 2009.
"It was pretty cool to be back behind the wheel of my car again," said Hamilton, who missed out on becoming the sport's youngest champion at Interlagos when Raikkonen beat him by a single point.
"It has felt like a very long time since the Brazilian Grand Prix," he added in a team statement.
"I have really kick-started my preparations for the 2008 season today."
Hamilton drove without traction control and the other so-called 'driver aids' which are banned for the new season that starts in Australia in March and said he felt comfortable with the car.
While Toro Rosso referred to their drivers Sebastien Bourdais and Sebastian Vettel as 'French Seb' and 'German Seb' to avoid confusion, Williams complicated matters by testing with two German Nicos.
Nico Rosberg was 13th fastest while 20-year-old Nico Hulkenberg was 16th.
