As a retired Finance Manager and the former National Finance Trainer for Hendrick Automotive Group - the term bumper to bumper makes me leery. I would imagine there are plenty of exclusions in that coverage. Have you read the fine print? Who is offering the coverage? I am not trying to be negative, just did the job for two many years at both Lexus and BMW dealerships and the term "Bumper-to-Bumper" is a trigger.
The Mopar Max Care doesn't quite cover everything, as a new bumper to bumper would (ie cosmetic manufacturing defects, wear and tear items, etc). It does, however, cover functionality of all of the systems (electrical and mechanical). To me, for a little over $3k for the 8/125k option, that makes the cost recoverable/beneficial whether I sell it at 4 years, or even 7 years, as the prospective buyers know that it was always kept up, and if it's inside the warranty, you can price it (as an owner-seller) on par with CPO vehicles, if not higher (presuming its in good cosmetic condition too). The transfer fee is only $50.
At the same time, the air suspension and all the other complex things that will likely fail outside of 3/36 leave you money ahead. If there's any drivetrain problems after 60k, again, you're money ahead. Given a first or second year production vehicle, during these challenging manufacturing times, that will help resale that much more. People pay for certainty (uncertainty is the greatest human aversion, overall), so when you buy these warranties at a relatively discounted rate (new vs much later), you probably win the bet.