Mike, I think your guess is as good as anyone's.
A few thoughts would be: unless you're selling an SUV winter is never an ideal time to sell a car, especially a convertible sports car. The Aero is a niche market and therefore, buyers can be quite set on what they are looking for; therefore, perhaps the colour isn't to the currently active buyers taste (personally I don't mind it)?
I have no doubt it will find a home as soon as the weather really starts to improve. Until then, I don't see it loosing money.
