Valterri Bottas has said that he has no doubts about his racing ability and is ready to win races.
In an interview with Autosport before Nico Rosberg dropped his shock retirement, Bottas stated he needs the right car to achieve success.
"I have no doubts in myself and I know that I'm capable of winning races," he said.
"It feels like I need the correct machine for that. It's going to come in the future, hopefully sooner rather than later. I know if there's a car that is close to being the best car or top three car, I can definitely do it."
"You need to make some kind of a career plan but in Formula One it's pretty tricky to make a year by year plan," he said. "Things are going to develop, you don't know how the market is going to be for the drivers and how many seats there are going to be in different teams.
"The best game plan is to get everything out of the car in every single race next year and then see race by race or month by month how the situation is developing and see from there.
"My first goal is to win a race, and obviously then one day the world championship."
"Hopefully it can be with Williams but if not I'm always going to try and get to my goals and obviously then you need to change plans if it seems like it's not possible."
Bahrain International Circuit - Winter testing