SRT...honestly, if the Individualization/customization is an issue. Just offer the basic plate as designed. I'm assuming this is aluminum and leave it to us to have the thing engraved with the details we wanted. You have space below the Car graphic and the type below for this. Any Jewelry store will do the engraving.

As for the dimensions you can find a common dimension that would be tasteful to suite both locations (glovebox or crossbeam) as desired by the owner. Customization at manufacture is a pain and too much to worry about on your end.

I like it and I'm definitely in!