mr. b motors la unica opcion this car dealer sold me a car and after 2 months the car broke down and now they dont want to repait the motor brownsville , Texas

 i we months m||||||||||||||||||nt whith this dealer, i applied toget credit in order to get areliable  transportacion , the car was  apparently in good condition but it needed a spare tire and the  ac , windows,and licenceplates back light didnt work they say will fix it ,rhey never did it,   i was going back and forth  several times , no response finally i gave up, the nex week  the car brokedown there was a lot of smoke coming out from the muffler 

iwent to several shops and they told me there was somethin wron whit the motor, the peopke at the dealership toldme that there was awarranty for 4  monthsin a verbal way so i went back again with that people  and they toldme to leave the car so the willtake it whith the mechanic and the next morning the called me just nsaying im sorry there is nothing to do about it the car is malibu 2005