Ferrari president Luca di Montezemolo rebuked Formula One champions Red Bull Friday for lack of respect toward the sport's most successful team.

Red Bull consultant Helmut Marko told Germany's Bild this month that his team's world champion Sebastian Vettel would be stupid to leave for the Italian glamour team in the coming years.

I see people who won world championships who don't quite know how to behave as champions, Montezemolo joked to reporters at Ferrari's glitzy ski retreat.

When they have won 10 percent of what we have won, then we'll respond.

Neil Martin has recently arrived at Maranello from British-based Red Bull to head up a new Operations Research department and Montezemolo denied that Ferrari had poached the Briton.

We need specific people, he said. If we have foreign people in the team I'm happy, it's fresh air, a new culture.

Reports have also said some teams, possibly including Red Bull, overspent last season in a breach of the rules agreed between them.

I don't know if it's true, said a more sympathetic Montezemolo. I want to save costs but not with a budget cap which is impossible to control.

The Ferrari president, whose team finished third last season, said he expected a very open year in 2011 with possibly four teams being competitive and the smaller names improving.

He reckoned there was generally more harmony in the sport than in the recent past and despite his love of Monza said all roads were open over whether Rome could host an Italian

Grand Prix which would alternate with the famous Milanese track.

Montezemolo could not resist another little dig at Red Bull and Vettel, who took the driver's title in last year's final race in Abu Dhabi after Ferrari's Fernando Alonso went for an ill-timed pitstop which cost the Spaniard a third championship.

I wake up in the night and think of that race, he said.

I don't want to say who is the best driver in the world. But I know who is.