Audi Plano

All in, I spent $73k in an Audi Q5. For weeks I had been researching which vehicles had working chips and which ones had MRMP refunds due to lack of chips. My only concern was all the safety electronics working and ended up spending an additional $10k on a Prestige due to having all safety electronics functioning. My surprise was right after signatures when I took possession of the car, I am informed that the emergency module is malfunctioning, they asked me to go back the following day to get it checked. The next day I was told they could not take the car for service because it may need a new module. I was very upset and wanted to return the car. One service manager convinced me that they were going to take care of it and I got a brand new Q5 loaner... three days later, and to my surprise, the loaner died on me in the highway. I spent over 2 hours waiting for a tow truck at 106 degrees in Dallas. Needless to say, I was really mad now, so I really insisted in returning my newly purchased Q5. My argument was, either the dealer knew the car had an electrical malfunction before selling it to me, in which case I would have not purchased; or the dealer had not inspected the car prior to selling it to me, in which case their negligence should be their problem and not mine. They refused to take the car back and their argument was that I had an attitude and tried to convince me that they wanted to help me. My "attitude" I would say was justified but they wanted me to pretty much accept their conditions. Since that conversation did not go well, I tried to cancel all after market products I had purchased... but so far with no luck. My messages are not being answered, so I will just contact VW group and complain about my $73k purchase experience. I will not purchase another vehicle from Audi Plano and, if this does not get resolved, I will never purchase another VW Group vehicle.