The E28 has a self-supporting body that is welded to the body platform. The passenger cell is a safety passenger cell with deformation elements both in the front and rear of the vehicle. Unlike its E12 predecessor and E34 successor, the E28 has a rear-hinged bonnet. The boot has a volume of 460 L (122 US gal). Most models have a fuel tank capacity of 70 L (18 US gal), with some models having a smaller tank of 63 litres (17 US gal). The kerb weight is 1,140–1,410 kg (2,513–3,109 lb).