Well its obviously you two don't drive skylines - so you must drive like crash bandicoots and don't want to draw attention to yourselves.
Where as us skyline drives appreciate that crazy driving is saved for the track - but there are also some roads which are enjoyable and challenging to drive within the limit of the law.
If you aren't stuck behind traffic - the GOR is such an awesome drive. And at the old speed limit of 100km/hr you were really driving to get anywhere near close to it. The Great Alpine Road, Reefton Spur and the road between Flinders and Cape Schank are also some great roads in Vic.
Some other enjoyable roads I have been on include the drive over the Great Dividing Range leaving the Gold Coast to get onto the Newell Hwy and the Road from Smithfield to Karanda in Cairns is another ripper.
But the best road in terms of enjoyment, quality of surface, and limit pushing is without doubt Phillip Island Race Track.