The spotlight at the start of the 2015 season was firmly placed on Max Verstappen. The 17-year-old was the youngest driver to make his F1 debut and there were plenty of questions as to whether the F3 graduate was up to it. Forty-nine points later, and the questions were answered.
Rookie team-mate Carlos Sainz was able to ply his trade away from the gaze of the headlines and did just as impressive a job with seven points-paying drives.
A switch from Renault to a year-old Ferrari unit might seem like a step back but, in reality, it could well be an improvement in performance.