This tip was really helpful to me. I have one more issue. Now Iam trying to give a slow down effect for the car when UP arrow is released. I tried to decrease the value from global variable but not seems to be working.
I tried the same using "Bullet" behavior by increasing the Gravity on UP arrow is pressed,So that I can control the the player and other vehicles easliy, but it seems to be like Bullet and Wrap is not working together. It will be great if you can help me out in this issue.