HIlFE – my nightmare with Porsche 996 Turbo and Porsche Darmstadt

Two years ago I bought a 996 turbo at the Porsche Autohaus in Darmstadt. The car was second hand with 68000 km and costs 52000 € Unfortunately, the most reliable car in the world became a nightmare for me. First I was delivered the car with 10 years old and defective tires, these flew almost around my ears during the first longer car ride on the way to Hamburg …. Overall I was towed three times, invested more than 12000 € in repairs, now I was told that the Turbo will soon say goodbye – when I tried to find a solution with the management of the Porsche Autohaus in Darmstadt – they offered me 1800€ as payment when buying an alternative car. 40 000!!!! Euro value destruction – Who has for me a tip, an idea – what can I do??? Thank you for your suggestions, thoughts.