Thanks for the trim removal photos. The door ones look ok but I didn't fancy the centre console. So I chickened out and applied the vinyl to the trim in place, making a pattern for the centre console. Door and front trim were done using a rectangle of the right size and trimming. It has worked better than I expected, though my wallpapering experiencecame in handy, mainly not panicking when creases appeared. The main issue is cutting round the vinyl but luckily there is a gap round the trim and if you go very carefully the scalpel blade fits in and it's done easily with no damagein a few seconds. A finger nail creases the vinyl to give an exact position to insert and slide the knife along. Getting the wrap round the edge fully is notpossible but I think it is acceptable and no risk to damaging the trim by breaking off tabs and the centre console looks a step too far for me.
It is very easy to take the vinyl off again as a false start confirmed. Just heat with the hair dryer and it peels away.
Some photos, the last one with the LED lights on.
PS Just seen the Q3 RS3 photos on this very site and guess what? It has carbon fibre trims just like these sticky back plastic ones.
Edited by: drjamesr