//copy constructor
 public MotorVehichle( MotorVehichle other )
     : this(other.tankVolume,other.brand,other.model,other.year,other.additionalInfo.Condition)
 {
 }
 //copy constructor
 public MotorVehichle(MotorVehichle other) : this(other.tankVolume, other.brand, other.model, other.year, other.additionalInfo.Condition)
 {
 }