How to add colliders to Tron Like Trail

Hi

I am using the TronTrail script that you can download off unity, but i am trying to add colliders to it to be used in my top down (but uses 3d colliders) racing game where the trails come out the backs of the cars (like tron) and are able to deal damage to the enemy. I am wondering if anyone knows what i need to do. I have searched google and found some answers but they are too advanced for me.

Thanks the code

 /*
  Generates a trail that is always facing upwards using the scriptable mesh interface.
  vertex colors and uv's are generated similar to the builtin Trail Renderer.
  To use it
  1. create an empty game object
  2. attach this script and a MeshRenderer
  3. Then assign a particle material to the mesh renderer
 */
 var height = 2.0;
 var width = 5.0;
 var time = 2.0;
 var alwaysUp = false;
 var minDistance = 0.1;
 
 var startColor = Color.white;
 var endColor = Color (1, 1, 1, 0);
 
 class TronTrailSection
 {
     var point : Vector3;
     var upDir : Vector3;
     var time : float;
 }
 
 private var sections = new Array();
 
 function LateUpdate () {
     var position = transform.position;
     var now = Time.time;
 
     // Remove old sections
     while (sections.length > 0 && now > sections[sections.length - 1].time + time) {
         sections.Pop();
     }
 
     // Add a new trail section
     if (sections.length == 0 || (sections[0].point - position).sqrMagnitude > minDistance * minDistance)
     {
         var section = TronTrailSection ();
         section.point = position;
         if (alwaysUp)
             section.upDir = Vector3.up;
         else
             section.upDir = transform.TransformDirection(Vector3.up);
         section.time = now;
         sections.Unshift(section);
     }
     
     // Rebuild the mesh
     var mesh : Mesh = GetComponent(MeshFilter).mesh;
     mesh.Clear();
     
     // We need at least 2 sections to create the line
     if (sections.length < 2)
         return;
 
     var vertices = new Vector3[sections.length * 2];
     var colors = new Color[sections.length * 2];
     var uv = new Vector2[sections.length * 2];
     
     var previousSection : TronTrailSection = sections[0];
     var currentSection : TronTrailSection = sections[0];
 
     // Use matrix instead of transform.TransformPoint for performance reasons
     var localSpaceTransform = transform.worldToLocalMatrix;
 
     // Generate vertex, uv and colors
     for (var i=0;i<sections.length;i++)
     {
         previousSection = currentSection;
         currentSection = sections[i];
         // Calculate u for texture uv and color interpolation
         var u = 0.0;        
         if (i != 0)
             u = Mathf.Clamp01 ((Time.time - currentSection.time) / time);
         
         // Calculate upwards direction
         var upDir = currentSection.upDir;
         
         // Generate vertices
         vertices[i * 2 + 0] = localSpaceTransform.MultiplyPoint(currentSection.point);
         vertices[i * 2 + 1] = localSpaceTransform.MultiplyPoint(currentSection.point + upDir * height);
         
         uv[i * 2 + 0] = Vector2(u, 0);
         uv[i * 2 + 1] = Vector2(u, 1);
         
         // fade colors out over time
         var interpolatedColor = Color.Lerp(startColor, endColor, u);
         colors[i * 2 + 0] = interpolatedColor;
         colors[i * 2 + 1] = interpolatedColor;
     }
 
     // Generate triangles indices
     var triangles = new int[(sections.length - 1) * 2 * 3];
     for (i=0;i<triangles.length / 6;i++)
     {
         triangles[i * 6 + 0] = i * 2;
         triangles[i * 6 + 1] = i * 2 + 1;
         triangles[i * 6 + 2] = i * 2 + 2;
 
         triangles[i * 6 + 3] = i * 2 + 2;
         triangles[i * 6 + 4] = i * 2 + 1;
         triangles[i * 6 + 5] = i * 2 + 3;
     }
 
     // Assign to mesh    
     mesh.vertices = vertices;
     mesh.colors = colors;
     mesh.uv = uv;
     mesh.triangles = triangles;
 }
 
 @script RequireComponent (MeshFilter)