Abstract: A driver training apparatus for simulating skid conditions of a vehicle which includes a lifting frame supported by four caster wheels which underlies and is connected with the vehicle suspension system and is propelled by the vehicle. Under normal driving conditions, the caster wheels turn to follow the direction of movement of the vehicle steered by the driver. Under the control of an instructor, the frame of the apparatus can raise the forward or rearward pairs of the caster wheels simultaneously or individually to raise the forward or rearward pairs of wheels of the vehicle relative to the surface of a roadway to simulate a slick road or skidding condition. Under the control of the instructor, the pivoting axis of the caster wheels can be inclined with respect to the vertical to stabilize lateral or forward movement of the vehicle when partially supported by the driver training apparatus.