Williams ahead in practice

Williams’ Nico Rosberg and Kazuki Nakajima set the fastest times. Button could not improve on his lap of 1m 36.430s in the final minutes, as Rosberg lapped in 1m 36.260s and Nakajima 1m 36.305s.
Raikkonen had to come to the pits because there was smoke coming from his car. The reason maybe the KERS batteries have overheated. Lets see how the practice goes on. As always the practice results are way away from the qualifying results or the race results.