You own a $100k+ car and you're crying about $1k/day insurance? You'll probably only go to a couple track days anyways. Your logic is drunk.
Oh, one of those, if you can afford the car you can afford every single thing that goes with it logics? The R8 costs about 5k per year in depreciation, probably depreciates less than half the new cars bought on TCG. Doesn't make it smart to blow 1k on insurance for a few hours on a track when I can throw a WRX on there for a fraction of the cost.