Both my VW's recently purchased from new, had tints already applied. I know my local dealer uses Llumar CTX, but these were dealer trades, and i tried calling the dealer and got bounced around with the answer of erm don't know to probably no. In all honesty, they didn't know the difference. But i was told all VW dealers all probably use the same.
Anyway, there surely must be a way to test if i've got a carbon or ceramic tint ? Once the tint is on, is there any sure guaranteed way to know ?