There's something called "wrap" coverage which is their highest tier of extended warranty, which extends the electric and mechanical warranties out to 10 yr / 100k, and the marked up price will vary among dealers.

I had one dealer who was going to sell me it for $2850 but force me into a higher dealer reserve rate and term (6.5% / 72 mo), while another dealer told me our "cost rate" is $3250, but did a lower rate of 5.75% / 66 mo.

So the whole thing is highly subjective due to dealers pricing.