Sometimes you get a product like that. Often you get things sorted out and the vehicle runs like a charm for years after. I had a Ford Taurus that had all sorts of stuff wrong with it in the first 6 months. Still have the car 16 years and 170,000 km later. Never left me on the side of the road once it all was sorted out.
So that's what I hope for you. Get the car sorted out and it runs flawlessly ever after.
Best of luck to you.