[rootusrootus]

It is untrue in the US. Manufacturer warranty follows the car. And it does so automatically, it is tied to the VIN and not whoever has the title.

[vel0city]

Eh, its kind of mixed. Some manufacturers like Hyundai have essentially a baked in extended warranty (10y 100,000mi) that is non-transferrable, only the base warranty (5y 60,000mi) gets transferred.