Congrats, perhaps, after giving away new, small vehicles (2-5)

I believe the answer is:

go-carts

I'm a little stuck... Click here to teach me more about this clue!

'small vehicles' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Another definition for go-carts that I've seen is " vehicles".)

I've seen this clue in the Sydney Morning Herald.

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