1. Very hot
2. Should be alright if it's been kept in real good shape and not modified or pushed hard... but questionable, especially if it's been modified a lot.
3. Ranging from very pricey to super pricey depending on condition/modifications as well as how old you are and so on.
4. FTOs, Celicas, RX7s, Fairladys, Skylines, MR2s, etc... are all in that category but vary significantly in price/running costs/availability. I also just realised that Toyota, once great at making the japanese sports cars (Celica, MR2, Supra) is now without such a car in it's lineup (bar the Sportivo models of Corolla/Camry/Aurion). Nissan I suppose at least still has the 350z (but no Skyline)