Noun
(colloquial) A person who is overly reliant on the use of their car, resisting any suggestion to use other means of transport.
(colloquial, Australia, New Zealand, derogatory) A bogan who is overly fond of their car or motorbike and enjoys showing it off and making noise with it.
(colloquial, Australia, New Zealand) A person involved in motor racing as either participant or dedicated spectator.
(colloquial, UK) A car enthusiast.
Source: en.wiktionary.org