Williams development driver impresses finishing 15th out of 20 drivers . Wolff completes 22 laps with a fastest time of just 0.227 seconds . But it was a happier story at Hockenheim as the 31-year-old Scot completed 20 laps finishing a highly respectable 15th . The 31-year-old finishes one minute 20.769 seconds behind main Williams driver Williams .
Williams development driver impresses finishing 15th out of 20 drivers . Wolff completes 22 laps with a fastest time of just 0.227 seconds . The 31-year-old finishes one minute 20.769 seconds behind main Williams driver Williams .