Every modern golf ball has dimples; their purpose is to increase and shape the lift and drag forces by modifying the behavior of the boundary layer. It should be noted that drag and lift forces exist also on smooth balls: they are only modified, not created, by dimples.
One effect of dimples is a reduction of drag, contributing to the increased length of flight of dimpled balls compared with smooth ones.
so... with that in mind...
what If a car such as a:
was covered in small dimples
would that increase mpg, speed, etc...