Doesn't need to be 'older' cars! My LCI is showing already (4.5 months) and I saw my dealer's convertible demonstrator LCI at the weekend (starlight blue) that was in a right mess - much worse than my White Silver. My dealer has conveniently not got back to me after I went in 6 weeks ago to report mine...they said they had to send photos to MINI - as they do with warranty - but my damage is so hard to see on WS, you can FEEL it's definitely wearing, you can see the rubbing in a certain light/angle. But I'll just go in as it gets worse and get more vocal!
.....and interestingly enough, I saw a 17plate M4 that has EXACTLY the same issue - must be apparent within the BMW range rather than MINI..... (took photos of it too!)