Sebastien Bourdais has agreed to compete in the final three rounds of the Superleague Formula championship.

Bourdais has been out of work since his release in mid-July from F1 team Scuderia Toro Rosso with whom he scored just six points from 27 Formula One grands prix over 18 months.

The four-times Champ Car champion in the United States will now race for Spanish club FC Sevilla in Superleague Formula, starting this weekend in Estoril following a successful test at Magny-Cours last week.

"For a driver, Superleague Formula is the best alternative to F1," insisted the 30-year-old Frenchman.

"It's the only other championship in Europe to offer a driver the possibility of racing single seaters at a high, professional level.

"The test at Magny-Cours made me realise just how fun the car is to drive.

"An F1 car is faster because it's lighter, but this car happens to be very competitive, benefiting from a lot of aerodynamic downforce and a very potent engine."

After enduring a miserable time with Toro Rosso, Bourdais added: "My desire is to be competitive straight away at Estoril.

"To win as soon as my first race will not be easy. I also want to have fun, which hasn't often been the case for me during this last year."