Here is a copy of the default strata bylaw for strata. Depending on when your strata was registered it could vary slightly.
2. Vehicles
An owner or occupier must not park or stand a vehicle on common property without the written permission of the owners corporation. That permission can
be cancelled. Permission does not give an owner or occupier a permanent right over that part of common property.
Inform the SM that this parking is causing a safety hazard to other residents (especially children) as you are being forced to reverse a distance of xx m.
Ask him to issue a NTC immediately (has to be approved by committee) and write to the resident (copy yourself) informing him that he is in breach of bylaws and giving him a time limit to comply.
If this elicits no response advise the SM and other residents that you will be starting proceeding at NCAT within 14 days to get the cars removed and the shade cover removed (cost to you approx $150) unless your initial request was complied with.
Take plenty of photos of the offender parking illegally (use a time/ date feature on the camera) and instead of photographing and submitting hundreds of photos chose a 7 day period and state this is just a typical week of the offenders parking breaches.
Especially photo any instance of him totally blocking the drive and record any verbal communication in a diary and keep any written or email communication.
This as far as I can see is a slam dunk result in your favor. Winning a parking bylaw breach is one of the easiest to win as a photograph is hard to dispute.