Theissen: Top two are still ahead

Nick Heidfeld has taken fourth place in each of the first three Grands Prix of 2007, and passed Fernando Alonso on the track in Bahrain.

The team have clearly established themselves in third place behind McLaren and Ferrari, but Theissen says they still have work to do to get properly on terms with the top two.

"We made an excellent start to the season, but we need to remain realistic," he said.

"As things stand, there is still a gap between us and Ferrari and McLaren."

Theissen admitted that the team had not expected to be so strong at Sakhir.

"Nick's overtaking move on Fernando Alonso in a straight fight during the Bahrain GP was a great moment, and it has surprised us slightly as well that we've been able to put the favourites under this kind of pressure so soon," he said.

"Needless to say, we will not be resting on our laurels, but it is important to take one step at a time.

"Our primary aim is to secure some podium finishes, but winning our first race is next on the list."

He also reiterated that despite Heidfeld's current strong form and BMW's desire to retain him for 2008, there would be no early decision on his future with the team.

"Both Nick and the team are currently delivering outstanding performances and are working really well together," Theissen said.

"So from that angle, there is no reason for either of us to be looking elsewhere for alternatives. At the same time, though, there's no rush to sort things out.

"We are speaking with Nick, of course, but we won't be giving any progress reports. We will make a decision before the end of the season and then announce that decision in due course."