I still have the ST. Its running stage 2+ (330hp and 440lb/ft). It only cost me £1500 to increase my power by over 30%. To get 300hp out of a Lupo? £5k min doing all the work yourself? It'll then handle like a complete turd. JBS quoted £8k for a roll in/roll out 250hp Lupo. For that same money just look at what you can buy. I enjoy modding, but each car should stick to what they're good at. lupo's are funky little city cars, theres no shame in that. Golf GTI is not a fast car, so the mods are phrely cosmetic to emphasise what it has.