Michael Schumacher ? F1 legend Jackie Stewart tells CNN who he thinks is the sport 's greatest driver . Win to race ratio is determining factor of greatness according to Stewart . Schumacher ? He was a great, but not as good as his father and grandfather were. Have your say on who you think the best F1 driver .
F1 legend Jackie Stewart tells CNN who he thinks is the sport 's greatest driver . Win to race ratio is determining factor of greatness according to Stewart . Schumacher ? He was a great, but not as good as his father and grandfather were. Have your say on who you think the best F1 driver .