Do you see this kind of interview?

I will have an interview one week from now.

To my surprise, the company decides to send
luxury limo to pick me up in airport, and send
me to a five-star hotel for one night. The next
morning, the luxury limo will pick me up
from hotel, and drive me over to the company location
to have an interview(six or seven hours). After that,
limo will send my back to airport.

Certainly, the company is very serious about this
interview. Does anyone has similar experience?
Can you share some experience what is going on here?

Thank you.