Like an olive

analogy
noun
a comparison between one thing and another, typically for the purpose of explanation or clarification.

A review of the Veterano scooter notes that " .. this scooter is like an olive, it takes time but for the connoisseur it is soft on the eye. With classic Italian lines it looks perfect parked outside the coffee shop while the owner can afford to relax."  Or have a haircut it seems. I'd never have thought of using an olive as an analogy for a scooter. A nice touch, though.