Tyre supplier Michelin has extended its deal with Superleague Formula for the next two race seasons.
The French company will supply its tyres to all the teams for testing and competition at least until the end of the 2010 season.
"We are pleased to be working with Michelin for the next two seasons," said Superleague Formula's Competition Director Robin Webb.
"Michelin has an outstanding reputation in motorsport and stands for quality and reliability. It has a vast amount of experience and will enhance the competitive nature of our series.
"For us, it was also an important factor when deciding this year's race calendar, since our inaugural round in June will take place at Magny-Cours, near Michelin's Clermont-Ferrand headquarters."