A nice touch is the red base that keeps the whole design coherent.
Ford E350 Ambulance 2009 Orange White Emergency Response MB771 Primary PR
You will find that Matchbox pieces often become conversation starters.
Ford E350 Ambulance 2009 MB771 2009 Emergency Response 2/8 Ambu Medic Red
You will find that Matchbox pieces are easy to clean and maintain.