Carla is an orange koala
Personality[]
Carla looks like Emily the Stirling Engine and owns a retailing grocery shop and she's also good at baking. Her name seems to be a simple rhyming alliteration based upon the car stem. It still doesn't explain why an animal found only in Australia would speak like an extra from The Golden Girls. She was written out in season 2.
Appearance[]
Carla is an orange koala with a US accent.