and their answer was this:
"I understand that you plan to purchase a Smart Fortwo in the middle of 2008. Unfortunately, we do not currently have this vehicle in our systems. To request a quote, please log in to the Policyholder Service Center with your User ID and password. Then, click on the tab that reads, "Vehicles" and the link that reads, "Thinking About Making a Change."
Please note that although the online application will not recognize the model type of this vehicle, it will give you the option to enter the cost new. This is what will help determine the quote for insuring it. Please also be sure to include any features the vehicle will have where asked on the application."
So, I think what they're saying is that they don't know what it is but they'll insure it anyway.