Lewis Hamilton on top in second practice.
Heikki to stay at McLaren through 2009.
Loeb extends his lead in Finland.
Second practice times:
Pos Driver Team Time Laps
1. Hamilton McLaren-Mercedes (B) 1:20.554 35
2. Piquet Renault (B) 1:20.748 + 0.194 38
3. Kovalainen McLaren-Mercedes (B) 1:20.760 + 0.206 33
4. Alonso Renault (B) 1:20.928 + 0.374 35
5. Raikkonen Ferrari (B) 1:21.009 + 0.455 35
6. Massa Ferrari (B) 1:21.010 + 0.456 36
7. Heidfeld BMW Sauber (B) 1:21.138 + 0.584 46
8. Kubica BMW Sauber (B) 1:21.363 + 0.809 36
9. Trulli Toyota (B) 1:21.505 + 0.951 42
10. Rosberg Williams-Toyota (B) 1:21.581 + 1.027 34
11. Glock Toyota (B) 1:21.662 + 1.108 39
12. Webber Red Bull-Renault (B) 1:21.733 + 1.179 43
13. Coulthard Red Bull-Renault (B) 1:21.837 + 1.283 34
14. Nakajima Williams-Toyota (B) 1:21.902 + 1.348 33
15. Bourdais Toro Rosso-Ferrari (B) 1:21.955 + 1.401 41
16. Button Honda (B) 1:22.150 + 1.596 41
17. Fisichella Force India-Ferrari (B) 1:22.197 + 1.643 36
18. Sutil Force India-Ferrari (B) 1:22.358 + 1.804 37
19. Barrichello Honda (B) 1:22.448 + 1.894 33
20. Vettel Toro Rosso-Ferrari (B) 1:22.945 + 2.391 5