An overrunable test vehicle being a mobile overrunable test platform and including an electronically-controlled anti-slip braking system for reducing wheel slip during rapid deceleration, the overrunable test vehicle comprising: a chassis; a first axle and a second axle rotatably supported by the chassis; a wheel connected to each of the first and second axles; at least one electric motor connected to the first axle; a hydraulic braking system (50, 60) partially supported by the chassis and partially coupled to at least the second axle; characterized in that the overrunable test vehicle further comprises: a rotational speed sensor connected to at least one of the first and second axles for determining a rotational speed of the connected axle; a ground speed sensor supported by the chassis for determining a ground speed of the chassis; and a controller operatively connected with the at least one electric motor, the hydraulic braking system, the rotational speed sensor, and the ground speed sensor, the controller configured to: calculate a difference between the rotational speed of the axle and the ground speed of the chassis to determine a slip threshold of the wheels; actuate the hydraulic brake system (50, 60) to apply a first stopping force; control at least one motor parameter of the at least one electric motor to apply a second stopping force; wherein the first and second stopping forces combined are less than the slip threshold of the wheels such that the chassis rapidly decelerates free of a wheel slip condition. a chassis; a first axle and a second axle rotatably supported by the chassis; a wheel connected to each of the first and second axles; at least one electric motor connected to the first axle; a hydraulic braking system (50, 60) partially supported by the chassis and partially coupled to at least the second axle; characterized in that the overrunable test vehicle further comprises: a rotational speed sensor connected to at least one of the first and second axles for determining a rotational speed of the connected axle; a ground speed sensor supported by the chassis for determining a ground speed of the chassis; and a controller operatively connected with the at least one electric motor, the hydraulic braking system, the rotational speed sensor, and the ground speed sensor, the controller configured to: calculate a difference between the rotational speed of the axle and the ground speed of the chassis to determine a slip threshold of the wheels; actuate the hydraulic brake system (50, 60) to apply a first stopping force; control at least one motor parameter of the at least one electric motor to apply a second stopping force; wherein the first and second stopping forces combined are less than the slip threshold of the wheels such that the chassis rapidly decelerates free of a wheel slip condition. a rotational speed sensor connected to at least one of the first and second axles for determining a rotational speed of the connected axle; a ground speed sensor supported by the chassis for determining a ground speed of the chassis; and a controller operatively connected with the at least one electric motor, the hydraulic braking system, the rotational speed sensor, and the ground speed sensor, the controller configured to: calculate a difference between the rotational speed of the axle and the ground speed of the chassis to determine a slip threshold of the wheels; actuate the hydraulic brake system (50, 60) to apply a first stopping force; control at least one motor parameter of the at least one electric motor to apply a second stopping force; wherein the first and second stopping forces combined are less than the slip threshold of the wheels such that the chassis rapidly decelerates free of a wheel slip condition. calculate a difference between the rotational speed of the axle and the ground speed of the chassis to determine a slip threshold of the wheels; actuate the hydraulic brake system (50, 60) to apply a first stopping force; control at least one motor parameter of the at least one electric motor to apply a second stopping force; wherein the first and second stopping forces combined are less than the slip threshold of the wheels such that the chassis rapidly decelerates free of a wheel slip condition.