Cargame hitTest problem!

1

Hi, I’m trying to make a little cargame, and I need help with one thing.

When the car hitTests the grass MC, I want the speed to go from .8 (normal) to like .6. I made this work in a test I did, but it got lost somehow (I know, I’m pretty stupid :-/)

the code for the car is:

 onClipEvent (enterFrame) {
 // making the car go forward
 if (Key.isDown(Key.UP)) {
  speed += 1;
 } else {
  // making the car go backwards
  if (Key.isDown(Key.DOWN)) {
   speed -= 0.5;
  } else {
   speed *= 1
  }
 }
 //The car will start to slow down after the speed of 25
 if (Math.abs(speed)>25) {
  speed *= .6;
 }
 // rotates the car
 if (Key.isDown(Key.LEFT)) {
  _rotation -= speed;
 }
 if (Key.isDown(Key.RIGHT)) {
  _rotation += speed;
 }
 // This will make the car move
 speed *= .8;
 x = Math.sin(_rotation*(Math.PI/180))*speed*+1.3;
 y = Math.cos(_rotation*(Math.PI/180))*speed*-1.3;
 if (!_root.move.hitTest(_x+x, _y+y, true)) {
  _x += x;
  _y += y;
 } else {
  speed *= -.3;
 }
}

Thanks in advance :+)