just remember all you do needs to be written to them , reject the car due to its on going problems , record on your phone any conversations you have when doin this make sure you ask the guy names etc, all this just in case they are kicking can down the road and its their plan i would say chances are this is what they are trying ,,, ie force you to take them to court then they will tell the court they had fixed all the faults you came back with while under warranty, then use well the last fault was not in warranty time etc,, just think this through at the worst case just in case, in uk you would need to reject the car in writing be clear what you want from them and what you expect from the car and them, you will need to get a independent engineers report done on car if they dont sort it out, you will need to stop driving it from point of rejecting it ,, you also tell the seller you are forced to reject car and that will incur a lot more expenses that will be claiming back off them when it goes to court,, ie engineers report, any taxi's or transport costs this has caused until its sorted out, and also the big one all legal costs etc,, and make them aware that after you have won all this back you will make sure you leave fittin and honest feed back through public media just to help others not fall in to the hassle and unhelpfulness games you suffered,,, IMPORTANT DONT MENTION COURT STUFF UNTIL THEY STOP TRYINg TO FIX IT ITS AT THAT POINT YOU LET THEM HAVE IT, most dealers know you get a few bad feedbacks its destroys their business they asl know that courts are on side of owners and not car sellers you have protections, just need to do it in a certain way