Prepare to move a road automobile (7)

I believe the answer is:

packard

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'automobile' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'prepare to move a road' is the wordplay.
'prepare to move' becomes 'pack' (I've seen this in another clue).
'road' becomes 'rd' (abbreviation).
'pack'+'a'+'rd'='PACKARD'

Can you help me to learn more?

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

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