Re: I Can't Decide 360 Modena or 360 Spider (leanin 4 modena) So when the wind comes up over the windshield, instead of having a roof for it to flow over, its better to be open so the air trips and swirls around and create turbulence and DRAG. Right. I think R&T meant to illustrate how aerodynamic the Spyder is-for a convertible. The Modena creates less drag due to its smoother body design. I have to admit, the Spyder looks hot top down with that engine-under-glass, but I'd favour the Modena-manual trans, no F1, thank you very much.