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Question 5041

If the vehicle's aerodynamics are modified by adding elements to make it more attractive...

  1. it will be safer.
  2. it will significantly affect fuel consumption.
  3. it will be lighter.
Show answer and explanation

Correct answer: it will significantly affect fuel consumption.

Add-ons that change the car's shape, such as the large rear spoiler on the passenger car in the picture, increase air resistance. At speeds of about 60 km/h and above, air resistance is the hardest force to overcome, so fuel consumption rises considerably. On most passenger cars, these spoilers are just decorative, so they do not improve safety either.

Manual II. Cuestiones de Seguridad Vial (DGT, 2026) · Manual II. Cuestiones de Seguridad Vial (DGT, 2026)