The G30 is the 7th generation sedan of BMW 5 series. The G31 is the wagon or touring version. It is based on BMW’s Modular Cluster Architecture Platform (CLAR) that was first used in the G11 7 series. Its chassis is made from a mixture of steel and aluminium. The suspension system utilizes a double-wishbone front suspension and 5-link rear suspension. The Wagon variant uses self-levelling rear air suspension. The steering system is rack and pinion with electric power assistance. Its powertrain utilizes a 2.0L B48 Inline-4 turbo petrol engine.