The wording of the problem is a bit strange, is this exactly how the problem was stated?
If there were zero friction the car would not be able to start moving in the first place. The tires require friction in order to roll. Imagine trying to accelerate on ice for instance, you could get the wheels spinning, yet the car wouldn't take off as fast as it would on pavement. This is due to low friction. If we were on a surface with perfectly zero friction, then we're not going anywhere. The car would not accelerate.