In almost a complete reversal of events in the season-opening Australian GP, Kimi Raikkonen romped to a trouble-free victory in Malaysia while World Championship rival Lewis Hamilton endured a torrid afternoon.
After being outdone by McLaren one week earlier, Ferrari fought back at Sepang, locking out the front row of the grid for Sunday's Malaysian GP.
Nick Heidfeld was the surprise name at the top of the timesheet after the BMW driver went quickest during final practice for the Malaysian GP.
Lewis Hamilton ended Friday's action in Malaysia at the top of the timesheets after a late charge to dethrone Felipe Massa.
Ferrari's F2008 may have been the quickest car at Sepang on Friday morning but it was also one of the more unreliable as Kimi Raikkonen found out.