LONDON -- Michael Schumacher should have refused to pass teammate Rubens Barrichello in the manipulated finish at the Austrian Grand Prix, according to three-time world champion Jackie Stewart.

Barrichello, who led the entire race Sunday, obeyed team orders and slowed down in the final straight to let Schumacher, his Ferrari teammate, take the victory.

The finish led to a barrage of criticism and prompted FIA, the governing body of Formula One, to summon Ferrari officials and the two drivers to a special hearing in Paris on June 26.

Stewart said Schumacher should have rejected the team orders.

"Michael could easily have disregarded the instruction," Stewart told BBC radio. "He has more power in Ferrari than any single man I have ever known in all of my career in motorsport as a watcher of Ferrari.

"It could have been altered by Michael's personal initiative."

Stewart said he was "very, very disappointed" and "shocked" by the fixed Ferrari finish.

"I really did believe Rubens was going to win the race, and justly so," he said. "I just thought it was a complete anticlimax to what was actually an exciting Grand Prix."

Stewart also criticized Schumacher for his actions at the postrace podium ceremony, when he pushed Barrichello to the winner's step and gave him the trophy.

"This really was a mistake and I think it was a bit of pantomime in which everyone felt embarrassed about," Stewart said. "Rubens was pushed into a position he did not want to be in. The manner in which it was all conducted was very embarrassing.

"It didn't look good for motor racing. Rubens drove an impressive race and it was a PR blunder more than anything else."

FIA could strip Ferrari of points or punish the team or drivers. But Stewart urged FIA not to impose any ban because it would hurt the British Grand Prix at Silverstone.

"The likelihood of the Ferrari team being disciplined in terms of being banned from a race would be very unlikely," he said. "It's a commercial decision of enormous magnitude."