To solve the traffic & parking problem a car is designed to revolve in any degree about a vertical axis. It has Three or four wheeler circular chassis to avoid dashing of corners while rotating. The driving wheels are powered with suitable transmission. The steering wheel/ wheels are connected to handle or steering by suitable mechanism. The Combination of differential mechanism, gear, shifting levers and clutches drives the driving wheels in same direction for forward or reverse motion and is able to execute regular turns. This is supported by steering handle / mechanism. With the help of levers it rotates driving wheels in suitable direction in order to rotate cars at its place. Steering mechanism turns steering wheels to facilitate the rotation. And car is able to rotate in any degree about vertical axis.