Lurking UK Boxster owner from Spain here.
I never liked my Boxster S badge as it looked very dull, was not chrome. Several months ago I read how somebody used an ice lolly stick to help align a Panamera P O R S C H E badge. It helps it follow the curvature of the boot lid edge. I made the letters 2 cm apart and 11.5 cm up from the boot lid edge.
Ice lolly stick in action:
