The goal of Bumper To Bumper is to free the car indicated by arrow from the croassroads.
If you're using a mouse, left-click any car, then drag to reposition
If you're using a touch screen, drag any car to reposition
Additional instructions are available in-game
If the game is slow, please head to settings and disable "Enhanced Visuals". This will turn off post-processing and shadows and will help on some mobile devices