diff --git a/madcars/Runners/mechanic/game_objects/base_car.py b/madcars/Runners/mechanic/game_objects/base_car.py
index 95d04ca..394ec23 100644
--- a/madcars/Runners/mechanic/game_objects/base_car.py
+++ b/madcars/Runners/mechanic/game_objects/base_car.py
@@ -228,6 +228,7 @@ def proto_dump(cls, visio=False):
                 'rear_wheel_friction': cls.rear_wheel_friction,
                 'rear_wheel_elasticity': cls.rear_wheel_elasticity,
                 'rear_wheel_joint': cls.rear_wheel_joint,
+                'rear_wheel_groove_offset': cls.rear_wheel_groove_offset,
                 'rear_wheel_damp_position': cls.rear_wheel_damp_position,
                 'rear_wheel_damp_length': cls.rear_wheel_damp_length,
                 'rear_wheel_damp_stiffness': cls.rear_wheel_damp_stiffness,
@@ -238,6 +239,7 @@ def proto_dump(cls, visio=False):
                 'front_wheel_friction': cls.front_wheel_friction,
                 'front_wheel_elasticity': cls.front_wheel_elasticity,
                 'front_wheel_joint': cls.front_wheel_joint,
+                'front_wheel_groove_offset': cls.front_wheel_groove_offset,
                 'front_wheel_damp_position': cls.front_wheel_damp_position,
                 'front_wheel_damp_length': cls.front_wheel_damp_length,
                 'front_wheel_damp_stiffness': cls.front_wheel_damp_stiffness,