Two - time world champion Mika Hakkinen says 17 - year - old Max Verstappen is too young for Formula 1 .
F1 's youngest ever driver Max Verstappen , 17 , happy with debut .
Two - time world champion Mika Hakkinen says 17 - year - old Max Verstappen is too young for F1   .
F1 's youngest ever driver Max Verstappen , 17 , happy with debut .