I also went sideways in my thinking to find a good plate.
On my old GTR33 I had N111SKY setup as N111 on the top row and SKY on the bottom but looking at it on an Aero it also works quite well.
Nice Sky. Almost suitable for an open top, how about making the plate something to do with the mood the car gives you.
L15TEN for the exhaust note !
S111TAN (put a fleck of black paint to make UN out of the 111) and you have sun tan, good for an open top but bad for your long term health.
Just a thought in case you wanted to have more fun.
