In Austrian vehicle safety and driving technique, how does driving with an open side window at high speeds compare to using automotive air conditioning?
Answer and explanation
Correct answer: C. Open windows at high speeds create high aerodynamic drag
- Step 1: At high motorway speeds, aerodynamic turbulences through open windows create more drag and fuel penalty than operating modern efficient climate control compressors. Answer: Open windows at high speeds create high aerodynamic drag. Why not the others: Open windows consume zero energy under all conditions, Air conditioning always uses four times more fuel than open windows and Open windows improve vehicle lateral cornering stability do not reflect Austrian technical safety guidelines.
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