Hi John

All very simple as per the rules below:

3.4 Glazing: Fitting of a laminated windscreen is strongly recommended. All other glazing may be substituted with alternative transparent material, but original fixing medium must be used including operating mechanisms. Rear screens to be minimum 5 mm thick

You will note the words “original fixing medium” in the rules which means yes you can used Perspex, plexi-glass, etc but the rear window must be mounted in the original rubber, not screwed to the frame, and NO securing straps, the same with the door glass and side windows, you still must beable to wined the windows up and down and open them!!


Dale M