Now Force India have announced that they have signed him to replace Nico Hulkenberg next season.
"Esteban has the most impressive track record in junior formulae and he is an exceptional personality outside of the car," said Wolff. "Force India have a strong record of working with young drivers and have again shown courage and vision to take Esteban under their wing."
"Even more, it is a positive development for Formula One that talent wins over money and we will be seeing some of the most impressive youngsters fighting to make it to the top in Formula One over the coming years."
Bahrain International Circuit - Winter testing