Looking at the website I think it is a vinyl wrap. Especially when you look at the cost. As for maintenance I don't know. IMO I think it looks awful.
It is vinyl wrap and it does look awful. Why would you want to spend £2000 making your car look like a blackboard?
But for the purest engine experience, displacement has no replacement. All other methods are simply attempts to artificially recreate the benefits of displacement.
The GTD is like a blow up doll. The GTI is like a proper woman. Sure the doll might last longer, and the woman might have higher running costs, but which would you rather have?
i like the vinyl wrap but in small amounts