Global Motorsport Media
According to Giedo van der Garde, success in feeder category GP2 is no guide as to whether a driver will succeed in Formula One.
The management of the 26-year-old Dutchman, who reportedly has sponsorship in tow, recently revealed talks about 2012 with three F1 teams.
Van der Garde has, however, finished just fifth in this year's GP2 championship after a poor final two rounds in Belgium and Italy.
He wrote in his formule1.nl column that he will not be returning to the series in 2012.
"What now? That's the big question. It will not be another season in GP2, I am now 26 and need to be realistic. It is Formula One or nothing," said van der Garde.
"My results in GP2 do not say anything about my skills as a driver. Look at Kobayashi and d'Ambrosio, two drivers who are doing well in Formula One, but in GP2 they were nowhere.
I am ready for Formula One and would love the chance to show what I can do in those cars
"I am ready for Formula One and would love the chance to show what I can do in those cars. They are much better for me than GP2," said van der Garde, who has been a F1 test driver with Spyker.
"These (GP2 cars) are sometimes like a rally car, with F1 cars requiring a much more refined style. That's my style and I hope I can prove it," he added.