Carrier/rack problems of the 2002 Volkswagen Beetle

2002 vw Beetle turbo 1. 8 while driving the red light sensor would come on stating my car was overheating. Nothing was leaking, sensors were replaced a few months prior due to the same issue along with a ring and it happened again. The red light flashes then about 2 miles later the oil light goes on and if the car is not pulled over immediately then you risk engine damage. The entire engine is made up of plastic parts pretty much which crack and melt very easy when heat gets to them. So now after spending money on water pumps, assemblies, hoses, sensors which total over 3k it is now an issue once again and the car is undrivable. I am extremely disappointed in this vehicle. Also my igniter coils were replaced 8 times (2x each one) prior to a recall and they do not reimburse you all the monies spent. Now there is a recall in my sunroof which the dealership will not fix since the water damage is already affecting the roof of the vehicle. So with all of my receipts not including rental cars for repairs only I have invested over 6k in a car worth less and I doubt no one will pay to take it off my hands which will leave a single mother car less.