thats going to suck. i did that with my 03 last winter. i bought a car cover, tire covers, plastic sheeting, and a tarp.
i put the wheel covers on and then the car cover.
after you put those two on i put plastic sheeting under the car and cut it to match the shape of the car but keeping the sides all longer than the actual length of the car.
wrap the plastic up around the sides of the cover and tape them or some other way attach them to the car cover.
then wrap the tarp around the entire top of the car.
this worked for me for about 6 months because i started in december and took it off in may. i had to go through feet of snow, flooding, hail and sleet. when i finally unwrapped the car i only had a few spots that were slightly damp but by then the tarp was kind of beat up. hope this helps.