Cars go faster than humans can by themselves, under some specific conditions.
Cars go slower than humans, or rather cannot go at all, under other specific conditions. Two weeks ago my wife ran 30 miles on trails in southern Texas. A car could not have traversed any of the distance she travelled on, because a car cannot run.
Cars make it easier for people to move themselves and stuff when there are appropriate roads to travel on. They have enhanced our abilities to do this, but they cannot run.
You're squashing the meaning out words by trying to suggest that "running" is somehow equivalent to "any other method of a person moving from A to B". But that's not true.
We can acknowledge the greater ease of cars for moving people and stuff without squashing the meaning out of words.
Finally, even the notion that cars are "better" at moving people and stuff needs careful examination. Thus far I have said "make it easier" because I am aware that by a certain set of metrics (related to energy use, material use, impact on the environment) cars are actually worse most of the time.