bwt1 (United Kingdom)
Environmentally friendly screen de-froster
Why can't my car automatically detect frost on the windscreen and automatically set a small heating filament to clear my windscreen before I drive off? Why do I have to run my engine with the heater on full blast, burning gas unnecessarily and polluting the environment at the same time? (Or maybe most cars have this already and I just drive a cheap car!!!!)

Reward: Save time and the environment!

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