Will new BMW F1 car be a dud?

German driver Nick Heidfeld has expressed concern about the performance of BMW Sauber's new Formula One car after testing it in Spain.

"Last year (at this stage) things seemed better to me," he told the Autosport Web site (www.autosport.com) during testing in Valencia on Wednesday.

"The balance was there quicker last year and we were more where we expected to be. But I cannot yet say this car is worse because I think we know what areas we have to work on," added the 30-year-old.

"We are quite confident that by Melbourne we will be able to be where we scheduled ourselves to be."