Willy Rampf, Technical Director of the BMW Sauber F1 Team.explained that they channelled their experience with the F1.06 into the new car,but at the same time on the new modifications regarding 2007 regulations.
The work on the BMW Sauber F1.07 monopost began back in 2006 and took shape as part of a close cooperation between the chassis experts in Hinwil and their colleagues in Munich responsible for the powertrain, engine ,transmission, and the electronics.
Priorities were set out from day one and all the aspects of the project brought together to create a harmonious overall package.
To this end, the most significant change is the switch to a single tire supplier in Bridgestone. In accordance with the stipulations of the FIA, the Japanese company has produced tires which offer less grip as a means of lowering cornering speeds.
As always, the key is to enhance aerodynamic efficiency. However, almost as important this year is the need to develop a package that functions as well as possible through corners.
Here, the front wing has an influential role to play, largely dictating the flow of air around the front tires.
It has been completely newly developed and forms a harmonious unit with the likewise totally new nose section, which is shorter and sits higher than its predecessor. This results in a reduction in its weight, but also places extra demands on the engineers when it comes to passing the FIA crash tests.
The most important aspect of this development, though, is that the wing channels a large amount of air under the car, allowing the underbody and diffuser to work to their full potential.