Which accessory increases air resistance and therefore fuel consumption at high speeds?
En español: ¿Qué accesorio aumenta la resistencia del aire y, por tanto, el consumo de combustible a velocidades altas?
A
A loaded roof rack
Correct answer
B
The rear head restraints
C
The interior rear-view mirror
D
The spare wheel in the boot
Why this is the correct answer
A roof rack increases aerodynamic resistance; it is better to carry luggage in the boot to reduce consumption.
Topic:
Safe and Economical Driving