Verstappen gives up on Champ Car

The former Formula One driver had been linked to deals with Forsythe and Minardi Team USA in particular, but he feels that he has missed out because he wants to be paid to race.

"We've been working on this for three months now and we're tired of waiting," Verstappen told his personal website.

"There is interest from a couple of teams but nobody is making a deal. We haven't heard from the interested teams so now it's over for me."

Verstappen was hoping to land a drive in the series as it prepares for a race at Assen in the Netherlands later in the year.

"It's a shame for everybody," he said. "I know for sure that the race at Assen would be sold out in no time. Just look what happened at Zandvoort with A1GP."

Verstappen pulled out of A1GP just days before the Dutch event, when he fell out with his team over financial issues.

"Apparently it's very hard to find a seat if you want to be paid for your work," he added.

"If they leave you in the dark for months the disappointment is big and I don't feel like doing it anymore.

"I don't want to keep my fans in the dark for a long time again and then cancel at the very last moment. They don't deserve that."