Hi A1GSS. I'm a Brit living in Canada since late 2009. In UK had an E53 3.0i, over here I have aE70 35d. Love the heated steering wheel but funnily enough the diesel park heating wasn't even an Option. In Canada!
When its realy cold the car overnights in the garage - never seems to get below about 4Celcius and it warms up pretty quickly. Runs rougher in the cold though.
Good luck with the search!
Peter T