Aerodynamics and design go hand in hand. Dr. Woll works together with the designers in the very early stages of development. "We jointly determine the proportions of the 1:4 models and hone the aerodynamics in the wind tunnel. Good cooperation is important here because it's often a question of millimetres. As one can see very well from the CLA, there is no contradiction between good aerodynamics and great design." The overall concept is important, and this is the reason why the record Cd figures of the CLA cannot be attained in all model series, the aerodynamics expert elucidates. "Nonetheless, the other models of our compact car family also will achieve top Cd figures." Striving to build still more aerodynamic models, the engineers continue their quest for optimisable details: with the goal of besting the record yet again.