A lot of cars now come with plastic intake manifolds. I think you will probably see more and more synthetic plastics used for new car parts.
That is bad that you are having so many problems. What repairs have you had to have done? How much did the repairs cost? Do you think Ford prices are too high?
I must be very lucky. I haven't had any major problems with my cars.
I did take a vacation in Florida. I stayed at a hotel one night. When I came out of the hotel my car was sitting on blocks with no tires or wheels.
