Update, So, I finally went ahead and downsized the
cupra to 18 inch wheels. Wheels are such a hard choice to make, went for MSW 72 in the end, wanted a slightly more aggresive offset than standard and the BBS without having to use spacers. These are 8x18 ET42 with 235/40/18 with Eagle F1 Assy 5. Cold weather not the best for testing but initial impressions are good, feels much happier being on 18s rather than 19s, for our poor roads. I know a lot of people don't like the polished wheels, for maintaining, but I've never had a
problem with them, just wash them regularly and no harsh cleaners etc. I'm hoping MSW quality will be good, they're something to do with OZ wheels and they wouldn't put their name to them if they weren't decent? Bonus was they accept OE centre caps, and I got a brand new set of S ones for £8. just need to get the black plastic bolt caps to fit back on now, they are a bit loose and will probably fall off. I'm not 100 percent on them yet, going down to 18s they will never look as a good as the 19 performance pack ones, but they are growing on me.