That's the only question i can answer as i havn't taken delivery of the aero yet. However it's definitly needed for the weather in Ireland i believe. I have a hardtop for my elise and i put it on from about November - End of February. It's much comfier like that. Plus it's like a different car. Which the same could be said of the aero. A coupe version and a soft top version <img src="/forums/images/graemlins/laugh.gif" alt="" />