 			if (!_started) return;
 			
 			_speedPercent = _speed / _maxSpeed;
-			
-			var i:int,
-				playerSegment:RTSegment = findSegment(_position + _playerZ),
-				dx:Number = _dt * 2 * _speedPercent,
-				bgLayer:ParallaxLayer;
+			var i:int, playerSegment:RTSegment = findSegment(_position + _playerZ);
 			
 			updateCars(_dt, playerSegment, _playerWidth);
 			

		
		
		/**
		 * Ticks the racetrack non-render logic.
		 */
		public function tick():void
		{

	import tetragon.signals.RTPlaySoundSignal;
	import tetragon.systems.ISystem;
	import tetragon.view.render.canvas.IRenderCanvas;
	import tetragon.view.render2d.display.Image2D;
	import tetragon.view.render2d.extensions.scrollimage.ScrollImage2D;
	import tetragon.view.render2d.extensions.scrollimage.ScrollTile2D;
