The ID.7 is the first electric model from Volkswagen for the upper mid-sized class. With a range of up to 700 Km (WLTP)02, the Volkswagen limousine is an efficiency champion. In addition to a new drive generation, sophisticated aerodynamics contribute to the ID.7’s long ranges. The aerodynamically favourable basic form, low drag coefficient (Cd value) of 0.23 and frontal area of 2.46 m² are the result of close cooperation between the Design and Development departments.
With limousines like the ID.7, the body shape accounts for about 50 % of the Cd value. The wheels and tyres influence about 30 %, the underfloor 10 %, and the functional openings through which air flows to the radiators in the vehicle front end, for example, also 10 %. The fact that the new ID.7 is the most aerodynamic ID. model so far can be seen at first glance when looking at the silhouette of the vehicle, which is almost five metres long. Volkswagen designer Daniel Scharfschwerdt says: “When designing the ID.7, there was a greater focus on aerodynamics than for practically any other model. This can be seen in the low front end, the flowing transition into the bonnet, and the fast windscreen. The coupé-like roof form and the tapering rear end are also designed for ideal aerodynamic performance.”
Even in the early stages of product development, intensive work was carried out on the exterior design, as well as on the underbody, wheels and other fine details. The prerequisite for optimal results is close collaboration between developers and designers. Stephan Lansmann, project engineer responsible for ID.7 aerodynamics: “We strive for ideal solutions in an iterative process, which includes regular consultation between the Development and Design departments. There are many small steps here that pay off in the end. Numerous computer simulations for flow calculation are complemented by tests in a wind tunnel as part of this process.”