Thanks for your replies.
We're not doing very well here, another 8" fell over night - haven't had this much snow since 1963 apparently.
My dealer has ordered the cover, I will go and have a look to see if it is upto the job.
Rolf: Those tents look like a police murder scene - no disrespect. I'm sure they do a great job keeping cars dry. The BMW cover is ~$400 with the exchange rate, if its OK I'll try one.
Does anybody think that much snow will harm the car? Is it better for the suspension to not have the permanent extra weight? Its forecast to rain Saturday, leave it to melt or brush it off - any thoughts?