They are the same price for insurance, trust me I know. lol I currently pay 2700$, it will drop by around -400$ when I turn 19, the 8 and the 6T are under the same section in terms of car/power/cost blah blah you get it. and for your car id reckon maybe 30ish?, depends if its car yard or private. And I'm positive you wont be able to put it through your dads name, as they have a law for these type of 'high performance cars' that if you are just a nominated driver and it's in your dads name for insurance, when you drive the insurance becomes null/void which is annoying because its around 1400$ more expensive.. But hey if you want a car like this, you just have to live with the costs, as these cars are aimed at older/ more experienced drivers. Hope this helps you mate, and good luck.