[Whimsy] What if the 'round wheels' of a car have all become 'spherical wheels?

In the past few days, I have a strange idea. Every day I look at the cars around me, and on the road, I can see their huge bodies and hear Engine issuing Harsh voice, but why is it the fastest speed on a straight road? It is necessary to slow down when turning. Can there be a solution to solve the objective fact of this limitation? Why can't we drive in any direction? I can't help but think about a problem. If these cars turn into ball wheels, think about what it looks like and the car can be driven in any direction! What a perfect car, like the current car, can only be very limited, and the left and right cars need a steering wheel. If it is a ball, it will be different. I think this is a strange idea, so let's write it down. Let's see if this happens one day.