I'm somewhat comfortable with the tax payer contribution, although the Shahin family don't really need the help, but it does sweeten the deal. (Let's face it, both levels of govt piss a lot more money down the drain than this. It's just a drop in the ocean.) The State can't afford to develop (or re-develop) a better Motorsport park in SA. And even if they could afford it, they could never run it commercially, nor attract enough high quality events to justify any major capital expenditure.
The Shahins don't do things by halves, look at their investment in SA over the past decade, developing the OTR stores, incorporation the HJ, Wendys, Brumbys etc franchises. They have many other business interests in SA also.
I am sure, if they are involved in a suitable Motorsport park, an hour from Adelaide, they will make it the Premier park in the state, with top quality facilities. They would have to, they aren't going to develop a huge park, and then let it go to ruin.
It could be the next big thing in SA, and certainly in the Lower Murray area.
I recently visited Paul Morris's V8 driving centre on the Gold Coast (
http://www.driveriderace.com.au/ride-race/), and if something like this was incorporated, it would be very successful.
The only concern would be the size of our population, are there enough people in SA that are going to pay to go to regular events?