High-precision rolled aluminium products guarantee stability, quality and reliability in vehicle construction. The increased use of aluminium also contributes sustainably to the reduction of climate contamination caused by traffic. In lifecycle terms, more than 80% of the total amount of energy expended is consumed during the useful life of a transport vehicle. The remaining 20% are accounted for by materials production, assembly and recycling/disposal.
According to studies by the IFEU Institute, Heidelberg, a weight saving of 100 kg in passenger cars achieved by using light weight materials results in an average saving of 0.35 litres of petrol per 100 km. In this way, CO2 emissions are reduced by about 10 g/km in relation to the total fuel supply chain. In terms of the life of a normal passenger car (200 000 km), this means a total of 700 litres less fuel; for vehicles with higher road performance, such as taxis or buses, this saving can rise to over 2 500 litres.

In 2006, 7 million tonnes of aluminium were built into passenger car components worldwide. The weight savings achieved thereby will enable 55 milliard litres of crude oil to be saved during the lifetime of these cars. CO2 emissions will thus be reduced by 140 million tonnes.