Diesel tuning offers the best of all worlds and is relatively cheap, the only thing missing is the sound. My Fabia vRS has an FMIC, hybrid turbo, 3″ turbo back exhaust, meth injection and that takes things from 130bhp/230lb/ft to 245bhp and 405lb/ft which makes it genuinely nippy, and capable of 55-60mpg. It’s good for 0-60 in just under 6 seconds measured with a g-meter, and that’s including two gear changes.