| http://www.w3.org/ns/prov#value | - In practice about 40 per cent of the overall air resistance results from the proportions and shape of the vehicle, a quarter of this factor coming, respectively, from the surface structure of the vehicle and from other features such as the mirrors, the lights, the number plate and the antennae fitted. another 20 percent is created by air moving along the underfloor, 10 percent from air moving thro
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