protected override void ClearData() {
base.ClearData();
Brand = null;
Country = null;
CarClass = null;
ParentId = null;
SpecsBhp = null;
SpecsTorque = null;
SpecsWeight = null;
SpecsTopSpeed = null;
SpecsAcceleration = null;
SpecsPwRatio = null;
SpecsTorqueCurve = null;
SpecsPowerCurve = null;
}