Polycarbonate window thickness
Turbo Mini Forums

Im looking to make the rear quarter windows out of polycarbonate sheet. I think they have to be 4mm for motorsport but i can get some 3mm stuff real cheap. Do you think this would be sufficient for a road car?

Cheers for any help, AL.

Hi, i think mine are 3mm, and road legal etc, they are a massive weight saving. I went for a full set and im well happy i also love the subtle bronze tint you can get.

Cool. I was just this second looking through your pictures thinking yours might be poly. Was gonna do them in that bronze stuff you can get, think it looks great. Nice car btw.

think most "race" spec ones are 4mm. think it may be in the regs.

I've got some spare old perspex ones in my garage if you want them, home made, but would do the job

Thanks for the offer bud, but i think im gonna get some polycarbonate sheet cheap so ill just make my own. Plus quite fancy doing it as havnt messed about with my car for a while, since my angle grinder decided to catch fire

But you never know i may get back to you if thats ok.

Edited by AL on 13th Nov, 2006.

Have to be 4mm for race use but 3mm is adiquate.

Agreed that they are well worth it, but dont bother with perspex. It'l crack