The widest chimneys seen so far, whose primary function was not to expel hot air, but to control airflow over the bodywork. Although only a minor change, the effects were significant in improving the car's stability in all sectors of the circuit, as proven by Olivier Panis's strong qualifying...
A sculpted inner-edge profile, part bending downwards and part running parallel to the ground. An extra step forms a venturi channel, improving downforce and reducing turbulence around the front wheels. Williams sported a similar solution at the same race.
A change to the inner, knife-edge profile at the bottom of the endplates. Rather than running parallel to the ground it bends downwards, forming a wider venturi channel which provides additional downforce and reduces turbulence around the front wheels. Similar solutions will be important in 2005,...
