Sep.24 (GMM) Colin Kolles has denied persistent speculation that Spyker has already determined its driver lineup for the 2008 season.

Spanish GP2 driver Roldan Rodriguez is now officially signed up to test for the Dutch team over the winter pre-season, but Spyker chief Kolles insists that reports also of a completed race deal are premature.

"We have not decided anything," the Romanian-born German told the newspaper Diario As, "and we will not decide until we assess all the candidates in the tests."

It is widely believed that Spyker, presently employing Sakon Yamamoto, is almost certain to continue its policy next year of using a pay-driver alongside talented rookie Adrian Sutil.

But a spokesman told 'As': "The (financial) contribution that a driver can make to a small team is important, but it is not the highest priority.

"What we look for first of all is quality, and if he comes with some backing, all the better."

It is certain, however, that Rodriguez will travel with Silverstone based Spyker to the last three races of 2007.

Kolles said: "We want him to become familiar with our working methods, the engineers and everything else to do with the team."