I once got into a shouting match at the dealership over warranty engine issues for my Jeep. I've had similar experiences with Ford as well. So we have GM, Chrysler, and Ford all with horror stories. I'm sure buyers of foreign cars have the same stories to tell.

I recently test drove a Honda CRV and told the salesperson explicitly not to call me and that we're just test driving and comparing various models for a couple months. He not only sat us down with the 'hard sell' but literally called me every day for 2 months. Note his 'hard sell' was $300 off MSRP.

I feel the independent dealer system has largely failed us and they're all terrible and unfixable. If I end up buying a Tesla it will be less for the car and more for the lack of traditional dealer experiences. Or I end up buying a 3 year old car and enjoy the savings from massive depreciation.