The issue, sparked after the former Minardi team was taken over by Red Bull, has meant a constant wave of contention, involving possible unfair advantages over those towing the V8 rule.
BMW motor sport director Theissen told 'Speed TV': ''I do hope that this discussion will disappear and next year we no longer see V10 and V8s side by side.''
MF1's Colin Kolles has been the loudest opponent of the V10 loophole, and he now tells the 'Welt' newspaper that he fears for the outcome of the situation at Monte Carlo.
''On a slow street course,'' said the team principal, ''a Toro Rosso could be on pole position.''
Kolles also reacted to Toro Rosso counterpart Franz Tost's assertion that the Faenza-based team's pace in 2006 is due not only to the V10.
''He is the only one with that opinion,'' said Midland's team boss.