The 360 F1 (the one with sequential gearbox) has a grille
The 360 (the one with H-gearbox) has a cover of the same color of the body.
The 360Challenge is a modified 360F1, so it has a grille.
The challenge also has a Naca-type air intake on the back glass (the one over the engine) for cooling the gearbox radiator that is installed above the gearbox.
I own and drive a 360 challenge.... so i'm sure of that
I think that the spider only comes in F1 version.