Despite the extensive use of lightweight aluminium, the latest SL actually offers greater structural rigidity than its predecessor’s steel construction. To achieve this, a range of different manufacturing processes have been used, such as vacuum die-casting and chill casting, tailoring each aluminium component to suit its specific purpose.
As a result, the new SL chassis boasts torsional stiffness of 19,400 Nm/degree – a huge 3,000 Nm/degree improvement over its predecessor - making it one of the most rigid sports cars in the world. The benefits, both in terms of safety and driving enjoyment, are considerable. Not only does a stronger chassis offer increased occupant protection but also keeps vibration to a minimum.