QuickCheck: Does driving with the 'air-cond' off and windows down save fuel?


THERE'S an ongoing argument online among car fans on whether it is more fuel-efficient to drive with your air-conditioning on or to lower your windows.

This surprisingly contentious debate has been raging ever since the first car rolled off the production line with modern air-conditioning (incidentally, it was the 1953 Chrysler Imperial).

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