I've owned a single turbo RX7, S14, GT-Four, and whilst the old Japanese stuff is cool to look at, they are decades apart from my E46 M3 in terms of build quality, comfort, reliability and day to day performance.
My brother has a 350z, it looks ok, sounds nice but is dreadful on fuel and i think it's fit and finish inside is really bad as well. Hard plastics all over, shitty buttons, etc.
If you buy something new like the Ibiza you're buying at the top of it's depreciation curve, you stand to lose thousands of pounds if you buy one now.