When I first drove at this car, I almost gor cried. Come on man, this is the new GT86. Considering the fact that you do not have any budget you have only two reasonable choices: firstly, you can buy it, but it depends on the master you will adress to. I have 10 years working at the car racing service and can say that this kind of car will cost you an arm and leg to modify. Therefore, you can theoratically improve it but this is not worth it. And this comes to the second choice: to buy a 996 GT2 or something. I probably recommend you the second choice because they will give you much more special feeling than for an affordable car. If you don't think the
Porsche is special, you just don't understand 11 vs 7.5. For that money, you can buy the new one (by adding some money).