Lightweight design is an important factor to reduce greenhouse gas emissions.
Nevertheless, not every weight savings inevitably reduces emissions.
On the one hand, materials of lower weight need more energy to produce but, on the other hand, they reduce the consumption in the useful life.
Only a consideration of the entire life of the automobile can determine if the lightweight design is actually environmentally efficient.
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In 2013 the Low Carbon Vehicle Partnership (LowCVP) commissioned thinkstep to carry out...