Sold a vehicle with defects

If i would give them a zero star i would currently im paying for a car I do not haveI bought a 2020 grand i10 from Hyundai Strijdom Park two weeks after taking delivery it started to have problems whenever I start the vehicle.They kept my car in their workshop for 5 months (January to May) but could not fix it. I rejected the vehicle in May because it was taking too long.They offered me a 2024 replacement car, but they made me pay R10,000 extra for it. They called this goodwill,but it was not. When I inspected the replacement car, the engine was making strange noises. The dealership staff heard the noise and agreed with me, but the Dealer Principal (DP) and manager **** and said they could not hear it.I refused to take this broken replacement vehicle. Now, I am paying the bank every month for a car that I do not even have. Management refuses to fix this. Do not buy a car from this dealership.