Ceramic coating should, in theory, last for many years in your environment. However, since you regularly use Meguiar’s carnauba wax, there’s a good chance you won’t be as happy with a ceramic coating. The shine from ceramic is unmatched in its clarity and slickness, but it will never look quite...
Yes, an EcoBoost is no comparison to real naturally aspirated power. Driving an EcoBoost next to a GT feels like driving a regular GT next to a Dark Horse. The specs might look close on paper, but the experience simply can’t be captured in numbers. Congrats on the new ride!
I see your desire for the extension of warranty, but on what grounds? You were aware of the warranty when you purchased the car, you can always get an extended warranty on your dime.
I had pretty constant communications errors on my DH for months until they found it was the EBCM and good since...
Adding to this, do not overlook tech incompetence, It is also as likely the oil pan was and is the leak and the tech went for the rear main seal first. With the rear main seal buried between the engine and trans the tech "rolled the dice" and went for the rear main.
Either way it is a warranty...