Car purchase: Iibiza Cupra R vs. VW GTI vs. Astra GTC

Servus municipality, would like to change the car next summer and am still very unreliable which it should be. I have to admit that my highest priority is the performance. I know about how everything is going and how much it presses. Only I am a bit overwhelmed with the 1.8t engines at the component design. Target would be 230 – 250 horses. So “only” with nem chip is nix. Which conversion can you recommend me??? For the time being, no matter which loader I want to build ne abturbo ! so at the K03s: Are the 700,- ? what can I tickle out there? does the k03 dp? have to change water and oil lines? would this run to 230 if large llk, abturbo, CAI and forge hoses ?? Does the K03Hybrid pay more?? How does it work with this loader Or does it work classically on k04 – 001?? what needs to be changed..Which upgrade is the most worthwhile? Which of these car cars are the agile with little weight (vw & ibiza)??