The present invention relates to a transformer toy car that automatically transforms the shape to turn a card over to provide the information on the card, if the card is attached to the transformer toy car. The transformer toy car includes: a separable toy car body; and cards adapted to be attached to the underside of the toy car body, wherein if one of the cards is attached to the underside of the toy car body, a portion of the separable toy car body is separated, and a portion of the separated toy car body pressurizes a floor surface, thereby making the toy car body stand up or turn over and thus allowing the underside surface of the card attached to the underside of the toy car body to be exposed to the outside.