Spherical Tyres

A thought provoking idea - what if we use spherical tyres instead of the cylindrical tube tyres. Cars could then move easily in all directions. The groove pattern could be similar to the longitudes of the earth . The normal shaft present in today's cars would be accompanied by another rubber like band around the front two wheels and another one around the rear wheels to allow frontal and sideways movement of the tyres. Think about it ... and let me know...
Adieu,
FOWL