My boy Ryan (who'll turn 3 in about a fortnight) has an impressive mastery of Holden models, and can pick a 48 (or forry-ayt in his lingo) from an FJ (hevjay) with what is disturbing accuracy. He's also got wagon and ute distinguished from sedan, although panel vans still give him a bit of trouble, they still get lumped in with the wagons.
I like to say he's so car-mad as to make his old man look disinterested
One of his favourite books is "Australia's Own", by Shane Birney. He loves to go page by page: "forry-ayt, forry-ayt, hevjay, FE daddy-car, FC poppy-car, Ekay" and so on.
Anyway Brett, you'll be pleased to know that when he encounters the occasional Vauxhall in that book, even though he doesn't yet immediately recognise the model, when I tell him "that's a Vauxhall", he knows to respond: "they rubbish"
cheers
RET