Hello and welcome O semolina in the pond type one:)
I envy you the oportunity of owning a Supra MkIV at your age.
Get a drive in a Supra and an MR2...rest is easy.
If you go Supra TT, first mod is decent tyres if they arent already, and take it easy for a while, especially if you splosh the dosh this winter.
Its a great dilema to be in, enjoy the (Im guessing it will be a Supra:)) hunt, look at and drive as many as you can as quality varies scarily, buy the best you can afford and better still make sure you get your membership sorted and get access to the members and traders cars for sale on here.