Thought you like it. i think it could be a tribute
Attatchment needs thought, some options I thought about last night:
1 soft elastic straps which could fasten around the glass
2 there is a factory spoiler that could be fitted and the kamm could go on that
3 some clips over the edge but something firm enough with no scratches could be tricky
4 something else...
It needs something - the g part of p&g doesn't last much probably partly due to aero and partly due to lack of mass. Tyres are at 45.