Karun Chandhok on Tuesday acknowledged he will likely have to settle for another season as a test driver.
In the role this year, the Indian made a one-off appearance in Jarno Trulli’s Team Lotus car at the Nurburgring and was hoping for a regular seat in 2012.
But he is quoted by the Press Trust of India: "I am mentally preparing myself to continue as a test driver for another season.
"As of now, most of the teams have announced their drivers for the 2012 season. There are only two slots up for grabs - one with Williams and other with HRT.
"So the situation is a bit difficult but I am ready to work hard," added Chandhok, who is tipped to stay with Lotus as the team becomes Caterham in 2012.
He admitted it is a "tough situation" to be competing on the market with other potential race drivers who can offer "good sponsorship money".