We will be staying in Mercure Hotel Sapporo and self drive. Read from your blog the automated carpark entrance is just right to the Mercure Hotel.
How is the turntable thing works when we drive our car onto it? Shall we drive on it first, come down to collect the parking ticket from the machine and then how actually we can check which floor have empty slot?
When collect the park, pay through the machine?
Info that I captured from your blog:
DRIVING AND PARKING
If driving, the hotel entrance is very small and easy to miss. The nearest carpark is just next to the hotel entrance. In the evenings and nights, many cabs line the streets and block your view of the carpark entrance, so you need to drive real slow as you approach the hotel and keep your eyes wide open for the entrance, otherwise you are bound to miss it. The automated carpark is an experience in itself, where you drive the car onto a turntable and into a lift. At the time of writing, it costs 1200 yen per day to park there.