Building for efficiency instead of performance

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Originally Posted by AshG

personally i think your wasting your time. the roadster has the aerodynamics of a brick. the best way to gain efficiency is to move the car through the air more efficiently.

typically a 2.0 zetec will do between 35-40mpg in something like a focus. have you ever asked yourself why it still only does 35-40mpg in a 7 which is less than half the weight of a focus?

beat me to it - if your after an efficient car you wont get it with a 7 type shape - too many sticky out bits.

BUT there are alternatives like the fisher fury type car - basically its a 7 under the skin but slippier cos of body shape