Meanwhile , both Saubers , Hispanias , Lucas di Grassi and Vitaly Petrov were eliminated .
Heikki Kovalainen and Timo Glock managed to get through to Q2 .
Both Saubers , Hispanias , Lucas di Grassi and Vitaly Petrov were eliminated .
Heikki Kovalainen and Timo Glock managed to get through to Q2 .