I live in Sweden.
So - I've been having the Coupe in storage every winter.
# wash it
# open the windows 5mm each side for ventilation
# keep it indoors, ventilated
# if on ground; plastic sheet under car against moist
# all extra carpets out
# at least 3kg's pressure in tires, or on axle stands, against flat spots
# WARM engine before shut down against corrision inside engine
# battery off
# fresh oil/filter
# check coolant freeze point
# full tank (minimum condense)
# Enis tree branches indoors, luggage and engine bay. Keeps mice/rats away (it works!)
# At start-up (spring); turn engine without ign. to get the oilpressure build up first.
That´s about it!