Selling Bad Vehicles, with bad attitudes

We bought a BMW 335i from Pinnacle, and front the work go this car was just bad news, paying close to R300 000 for this BMW, it has been back and froth for repairs and the car is still not fixed, they now hold us the client liable to spend money to do repairs. They take very long to five feedback, and sell bad cars. they deal in poor faith, and make their bad stock their clients problems, you would think if you buy a car at that price you would get good quality, but clearly they are just in the business of making money, and customer satisfaction just means nothing for them!