They're not interlocked as tightly as you might assume. The rise of the cross-over is an example. These vehicles are on a car frame, as opposed to the SUV being on small truck frames. Yet the cross-overs enjoy all the same features and more. Then there are the Dodge Ram trucks that jokingly referred to as "shipping crates" for their simplicity and issues. Larger vehicles have all the same issues as the smaller vehicles.
"Upsell" is called paying $800 for a $30 feature, such as GPS Voice Navigation. In other words, you're typically adding to the product, rather than changing it out entirely. When you go to McDonalds, they offer you desert with your meal. They're not trained to try and convince you that you don't want that cheese burger, buy a "Big" Mac instead. Once you tell them what you want, they're trained to get you to add to it; as people don't mind being offered additional whatever. It does however annoy folks, when the sales person pressures you into buying something that is different from what you were originally seeking.
Third, with the reasoning that all paints have been compromised, we should be seeing luxury cars with paint issues as well. I don't expect luxury car level of paint quality, but do expect better than what I've been seeing. If the MSRP was 13k then yeah...