After three seasons with Toro Rosso, the 24-year-old Frenchman has been replaced for 2015 by the young rookie Spaniard Carlos Sainz jr.

He told the official website of America's premier open-wheeler series: "I would be really interested in racing in America in Indycar. I think it's a great championship.

Indycar.com said Vergne has already contacted the teams Andretti and Ganassi.

"I'm working with a manager who works with a few drivers in America, Julian Jakobi, and at the moment, it seems like it is quite hard to go to a top team right away, but I am very interested to see what type of seats are available," Vergne added.

The target

Earlier, it was reported Vergne's best chance of staying in the F1 paddock next year was to accept a possible role as Williams' new reserve driver.

"I'm not really bitter to leave Toro Rosso," he insisted. "I have some other options in Formula One, but I want to get back into a series where I can win races and win championships.

"My target is to go for the Indycar championship in my first year.

"I don't pretend I would win everything, or have an easy time on the ovals. It's a lot to learn coming from Europe, but many European drivers have become quite good on ovals with some experience, and with so many road courses and street races, I know I can be very effective," Vergne added.