The main thing is not to give the police an opportunity to question you. There is test driving and giving a car a "test". A generic letter and being respectable on the roads should theoretically cover you. The two to check with are VicRoads and the local police.
In respect to personal transport (which you were trying to avoid) I would be fairly careful here. Insurance as well as police attention would be an issue. Getting an exemption with no clear rationale will be next to impossible.
Fill out the exemption form and see what happens with the work option. From your signature I assume you have more than one personal vehicle - if they are all registered then there is an option other than the non-permitted vehicle (unless the Magna is a true beast). If the other cars are not registered and there are no other vehicles available there may be a reason to discuss exemptions but don't hold your breath.
Yeah I know what you're saying. I'm not fussed if I can't drive the VS (it would be nice to be able to), I can get my dad to take it for a drive sometimes so at least it gets a run. But yeah, road testing customers cars is part of my job, it's not like I would ever thrash a customers car or do anything stupid because I respect other peoples property, I treat customers cars better then I treat my own cars haha.
If I drive normally then there shouldn't be any problems, but if the police see P-Plates on a car, then look at the badge and it says "SS", "V8", "Supercharged", "F6", "GT", etc, then they will be wondering why a P-Plater is driving those sort of cars.
I could probably even get away with driving my VS on my P's because it still has the ecotec V6 badge and the engine number on the rego sticker is still the same as the old engine, but I don't want to risk it, knowing my luck (and I am a very unlucky person), ill take the car out once, get pulled over, asked to open the bonnet, and then ill have to end up leaving the car on the side of the road. And I just don't want to imagine the car getting stolen or every window smashed and everything stolen out of it
It would literally kill me if something like that ever happened to my VS, or even the Statesman.