Another difference is the shape.
3 different shapes.
Coily, 1.3, 1L
Coily is rounder, vertical side grills. Also taller
1.3 has a hump like a late model falcon with stickers on the hump.
1L has no hump, and it has an recessed 50mm?channel down the middle.
I didnt realise Hardtops have no hoops in the bonnet! Makes sense
Softop bonnets with the hoops, They are "bolted through" the bonnet. So if you take it off, you will have 2 holes in your bonnet.