Cars used to be much smaller and used a lot less petrol. Compared to SUVs these old Autos look like toys, but they were much less thirsty.

Today’s cars spend most fuel on moving themselves forward – the passengers weight make hardly a difference.

The 1967 VW Beetle weight a mere 840 kg and a Toyota Prius NHW20 Hybrid 1,317 kg. Just for fun: the Hummer H2 weighs an amazing 2903 kg.

Each kg saved makes a difference and especially today we have so many tough , but amazingly light materials. So lighter cars should be no problem at all.