Due to the horrendous state of our roads, and me getting older, i am finding my Monte to be uncomfortable and crashy on 17" alloys, just wondering if anyone has tried 15", is there a lot of difference in comfort , road noise etc.  Many Thanks.

My Fabia 3 came on 16’s and I found those comfy enough, road noise is mainly down to tyres. I have a cheap set for sale in the for sale section if you’d be interested. Might look a bit silly on 15’s 

We have 16'' wheels on our fabia 2 and they are ok,changing to smaller wheels might give clearance problems on large brake calipers though ?It would definitely pay to check whether smaller wheels are compatible with your brake calipers and required offset.

They do.

The Steel spare wheels for a Monte Carlo / vRS is 15".