Don't know about a remote start, BUT:

You can get an engine block heater for the 2003-2005 HCH, so I'm sure they will have one available soon for the 2006 if they don't already.

That will give you almost instant hot air from the heater and will help the car achieve better gas mileage since it will get the engine warmed up to optimum operating temp sooner, and you will not waste any fuel, just spend a few cents of electricity every night. Assuming you have a carport or a garage and have access to an electrical outlet near where the car is sitting overnight.

Another possible option, anyway, maybe, eh?