Some Lambo doors use hydraulics with remote control operation ( which is way too cool! ) and it's very reliable enough to hold the CF doors weight. For me, its just very practical because I cannot open my door fully wide everywhere because its just too long and takes a wider space to do it. I've had chips now in the sides of my door and in my side mirrors because it just gets a bump whenever I park my CF in my garage. ( I believe the paint is not too strong )
Plus, its not just Lamborghinis who has these doors anyway and if my car will look great on it...heck I will love it to death

Imagine pushing a button and your door will pop open vertically

Even Porsche cars will envy my XFIREX
Plus it'll show off my illuminated door sills and blue under dash neon lights better than opening it sideways