Something not specifically mentioned here, and I think is very relevant, is that the first of the cars will be out of warranty before we know it. All we'd like to do is understand the cars from day one. I've owned two shops (Porsche specialist) over the years. I can't imagine my car going back to any dealer for really anything, given what I've seen so far. If I could have declined the warranty altogether, with a corresponding decrease in price, I would have gladly taken that option.
(The business I own now is not automotive related, but I have about a dozen car dealers as customers. Nothing about the way they do business, especially in the current climate, encourages me to patronize them for anything other than delivering a car for a negotiated price.)