The seller just told me that it has a five-year service warranty that is transferable. The trike was purchased by him in April 2024.
Unless that 'five-year service warranty' that can be transferred to your ownership is the
2 year BRP Factory Warranty, plus 3 years of BRP Backed BEST Warranty, then it may not be recognised anywhere but at that particular dealership, and if it's not, it could be useless anyway, due to all the exclusions & limitations many of those type of 'service warranties' have that the BEST Warranty doesn't!
I believe that over your way, the OEM BRP Factory Warranty can run for as much as 2 years, and to take advantage of the BRP Backed BEST Warranty, it must be purchased
BEFORE the OEM Warranty runs out, so if it
IS the BEST Warranty that he purchased early, then there's still just a tad under a year on the OEM Factory Warranty to run, up until April 2026, and then there's up to 3 years of BEST Warranty to follow, which can be handy.
Not necessarily so handy if it's '
just' a 'service agreement' with that specific dealer, as those tend to be fairly limited, restrictive, and rarely worth much more than the paper they're written on - and in these modern times, where sooo much is done on-line, it may never have been written on any paper to start with!!

Caveat Emptor!