diff --git a/automobiles/ground_detection.lua b/automobiles/ground_detection.lua
index 38b5ace..ee7c7c9 100644
--- a/automobiles/ground_detection.lua
+++ b/automobiles/ground_detection.lua
@@ -21,7 +21,7 @@ function automobiles.ground_get_distances(self, radius, axis_distance)
     local rear_obstacle_level = automobiles.get_obstacle(rear_axis)
 
     local f_x, f_z = automobiles.get_xz_from_hipotenuse(pos.x, pos.z, yaw, hip)
-    --local x, f_y = automobiles.get_xz_from_hipotenuse(f_x, r_y, pitch - math.rad(90), hip) --the x is only a mock
+    local x, f_y = automobiles.get_xz_from_hipotenuse(f_x, r_y, pitch - math.rad(90), hip) --the x is only a mock
     --minetest.chat_send_all("r: "..r_y.." f: "..f_y .." - "..math.deg(pitch))
     local front_axis = {x=f_x, y=r_y, z=f_z}
     local front_obstacle_level = automobiles.get_obstacle(front_axis)
diff --git a/automobiles_roadster/roadster_entities.lua b/automobiles_roadster/roadster_entities.lua
index 6fd6ebf..738bd45 100755
--- a/automobiles_roadster/roadster_entities.lua
+++ b/automobiles_roadster/roadster_entities.lua
@@ -26,8 +26,8 @@ initial_properties = {
 
 minetest.register_entity('automobiles_roadster:rear_suspension',{
 initial_properties = {
-	physical = false,
-	collide_with_objects=false,
+	physical = true,
+	collide_with_objects=true,
 	pointable=false,
 	visual = "mesh",
 	mesh = "automobiles_roadster_rear_suspension.b3d",
@@ -163,7 +163,7 @@ minetest.register_entity("automobiles_roadster:roadster", {
 	initial_properties = {
 	    physical = true,
         collide_with_objects = true,
-	    collisionbox = {-0.5, -0.5, -0.5, 0.5, 1, 0.5},
+	    collisionbox = {-0.1, -0.5, -0.1, 0.1, 1, 0.1},
 	    selectionbox = {-1.5, 0.0, -1.5, 1.5, 2, 1.5},
         stepheight = 0.5,
 	    visual = "mesh",