Misses first race of the season with a back injury, but bounces back to once again outscore team mate Massa, taking two podium finishes as he established himself as the biggest thorn in the sides of the more competitive Mercedes and Ferrari teams.
Stakes his claim as a true F1 frontrunner, making the most of Williams' renewed competitiveness to out-perform new - and far more experienced - team mate Massa. Finishes fourth overall with six podium appearances.
From the off, speed compares favorably to more experienced team mate Maldonado's. FW35's lack of pace makes proving talent hard, but P3 grid slot in Canada is superb. First points come with eighth in USA. Beats Maldonado overall and retained by Williams for 2014.
As the official test and reserve driver of the Williams F1 team he takes part in 15 FP1 sessions in place of regular driver Bruno Senna. Impressive performances help him earn a race seat alongside Pastor Maldonado at the team for 2013.
Enters the GP3 Series and wins the title at his first attempt with four wins, one pole position and three fastest laps. Also enters a number of F3 races and tests an F1 car for Williams.
Takes third in the F3 Euro Series for the second successive year with two wins and also retains his F3 Masters title - the first driver to do so. Becomes test driver with Williams.
Finishes third in the F3 Euro Series. Also has a handful of outings in British F3 but the highlights of the year are victory in the prestigious F3 Masters event and fifth at the Macau F3 Grand Prix.
Has an outstanding year, winning both the Formula Renault 2.0 Eurocup and the Formula Renault 2.0 North European Cup. Takes a total of 17 victories over the two series.
Competes in the Formula Renault 2.0 North European Cup, finishing third with two wins and two pole positions.