I could be interested in a glass option, i think if it was plastic the heat would destort the transparancy and look misty and dirty.
But i would much prefer a carbon version.
Weight is also a big factor, has to weigh sweet FA as the oem roof is heavy.
How about making light weight targa storage? As the factory unit is even heavier than the roof, rediculous the amount of weight in it. Would be nice to see it in carbon also. I was thinking about improving on the factory design, could it be higher or offer more clearance in the engine bay so you could use ITB's with a collection box or perhaps SuperCharger with the Laminova SOS sells.
Also when looking into the rear view mirror, the targa storage sits high, i think this is the design, restricts the limited view we already have. Not really a bigger as i would rather a light weight option which offer more room and clearance in the engine bay.
Anyway... Back to the Actual targa, another option would be great but i would prefer a carbon option over anything else purely for weight saving perhaps for the carbon look anyone not wanting that could spray it.