Barnsey, that highway shot looks something like between Dubbo and Parkes, would that be right?
I get into that area occasionally.
And your Vauxhall reminds me of a similar one I had pass me on the Bell's Line of Road back in 1965. It had a grey Holden in it, then later in the very slippery conditions we came across it lying on its side. Suicide doors are not a good thing at that sort of a time!