Thats a good question and I think the cars owners or those who've gotten close up to inspect them are best to answer that but I'll give a shot with what I know. The gold/black car with pillar scoops looks to have 67/68 Firebird tail light lenses mounted in a custom tail panel.. I know the lenses on Pantaras White/Gold car are just clear/red plasic cut to fit the opening and installed with a flathead screw at either end.. I do not know what is "behind" the lenses though... I've heard 'rumors' that the panels were installed over top of the stock rear tail lights on some cars and illuminated that way.. but I have no idea if that is fact or just rumor.. I've not seen that with my own eyes.. I'm sure Pantara knows what is behind the lenses on his 70.. I didn't take the time to look and just plain didn't think to.. Dans Yellow/black 70 seems to have a much cleaner tail lense installation than Pantaras car. Though I don't know how they are attached.. Maybe he could let us know. The other cars I've only seen pics of so I don't know