Vehicle repairs

I own an Infiniti Hybrid Q50 S. Nissan Milnerton is the only Nissan dealer I can take my vehicle to be serviced. My vehicle was there for 6 months waiting for parts. During that time my vehicle was damaged. Break disk warped 2 having done 10 000km between the warping. Front light had to be replaced x 2. The AV unit had to be replace. Its an automatic, the gear box had to be replaced. All the censors freaked out many times. Buttons on steering wheel were sticky so that was replaced. With all the money that has been spent on that car as well as car rental they could have given me a new car. Vehicle is 3 years old and I know that it has high millage (not due to fun living) I'm offered R180 000.00 . Vehicle still needs some repairs to the damage from the 6 month stay. I love driving the car but the headaches and fighting have not made it pleasant. Infiniti SA have also been pulled over the coals but are assisting.