Super Aguri are waiting for a clarification from the FIA before they decide whether Japanese rookie Yuji Ide will race for the team again this year.
Reserve driver Franck Montagny has been promoted to race this weekend at the Nurburgring following concerns expressed by the FIA about Ide's suitability. It comes after Ide tipped Midland's Christijan Albers into a series of barrel-rolls on the first lap of the San Marino Grand Prix.
The team have admitted that it would be 'ideal' if Ide could return for the Spanish Grand Prix next weekend - particularly in light of their preference for an all-Japanese line-up.
However, they will not confirm who will drive at Barcelona until they have had further clarification from the FIA.
Super Aguri's motorhome has been a target for driver managers from the GP2 paddock this weekend, hoping to profit from the uncertainty about their driver line-up, but the team are unlikely to make a deal with anyone at this stage.
Speculation at the Nurburgring this morning that Super Aguri were planning to put Ide back in the car in time for qualifying, forcing Montagny to step down from his Grand Prix debut, has been categorically ruled out by the team.