Cars & Motor

The new BMW X7 - Intelligent lightweight construction, optimized aerodynamic properties, new mild hybrid technology

Quelle: AUTOMOTOTV (Glomex)

The body structure of the BMW X7 combines high solidity with optimized weight. To achieve this, an intelligent mix of materials is used, which also improves the body properties in terms of rigidity and crash safety. The safety passenger cell, which consists of hot-formed steel grades, is reinforced by the additional use of multiphase steels. In the front end, an engine side member consisting of extruded aluminum sections and die-cast aluminum spring struts are used. In addition, the hood, front side panels and doors of the BMW X7 are also made of aluminum. This promotes both the driving dynamics and efficiency of the SAV. As part of the design modifications, the aerodynamic properties of the new BMW X7 have also been optimized in detail. The active air flap control system adjusts the airflow to the cooling requirements of the powertrain. Like the lower ones, the air flaps located in the area of the BMW kidney can be opened and closed in several stages. When cooling requirements are low and the flaps are closed, the airstream can flow around the vehicle, reducing drag by up to seven percent. Air curtains in the outer area of the front apron direct the airstream specifically along the wheels. Air deflectors on both sides of the rear window, together with the roof spoiler, ensure precisely defined airflow.