(from autosport) Heikki Kovalainen put his McLaren on top of the timesheets on the second full day of testing at Valencia in Spain on Wednesday. The Finn set a best time that was just more than six tenths of a second faster than Felipe Massa's Ferrari, with world champion Kimi Raikkonen a further two tenths of a second adrift. Massa caused one red flag when he stopped on track at 10.16am when a temperature sensor warning light came on. Behind fourth fastest Lewis Hamilton, Kazuki Nakajima continued to show the strong form from the Williams team in the hybrid car while Nico Rosberg made more progress witht the new FW30. Nakajima ended the day one tenth faster than former world champion Fernando Alonso in the new Renault R28. Eighth fastest Mark Webber showed some improved speed from the new Red Bull Racing RB4, but the Australian suffered reliability issues. He caused two red flags during the day, stopping on track at 10.49am and 2.35pm. "I'm happy with the new car," said Webber. "Today has been encouraging and, so far, it seems to be a big step forward from last year in terms of reliability and speed, which is great. "Now we need to work with what we've got and get it as fast as possible before Melbourne. We've got a big four weeks coming up." BMW Sauber's Robert Kubia continued work on trying to overcome the balance issues that have hindered the speed of the new F1.08 to set the 12th fastest time, with Toyota's Timo Glock 11th quickest as he worked on improving the TF108. Rubens Barrichello completed 31 laps in the new Honda RA108 but was unable to challenge the new cars ahead of him, setting the 16th fastest time of the day. Today's times: Pos Driver Team Time Laps 1. Kovalainen McLaren-Mercedes (B) 1:11.000 92 * 2. Massa Ferrari (B) 1:11.662 81 * 3. Raikkonen Ferrari (B) 1:11.850 108 * 4. Hamilton McLaren-Mercedes (B) 1:12.076 115 * 5. Nakajima Williams-Toyota (B) 1:12.255 93 6. Alonso Renault (B) 1:12.360 111 * 7. Rosberg Williams-Toyota (B) 1:12.493 117 * 8. Webber Red Bull-Renault (B) 1:12.594 87 * 9. Heidfeld BMW-Sauber (B) 1:12.976 51 10. Vettel Toro Rosso-Ferrari (B) 1:13.015 63 11. Glock Toyota (B) 1:13.129 95 * 12. Kubica BMW-Sauber (B) 1:13.230 121 * 13. Bourdais Toro Rosso-Ferrari (B) 1:13.307 118 14. Sutil Force India-Ferrari (B) 1:13.409 98 15. Trulli Toyota (B) 1:13.547 96 * 16. Barrichello Honda (B) 1:14.588 36 * 17. Kogure Honda (B) 1:16.954 40 * 2008 car All Timing Unofficial