Racing room

The heart of "clean Racing"

B car does not succeed to do an overlap on A by a secure driving way,

so A can choose his path and run just front of B

"Succeed an overlap in safety way" mean not to try an overlaping with late brake and crashinto A to take a way by brutal driving

B car succeed in overlap the A car, so A must leave an area to B car to avoid an accident, this area is named "racing room"