My FD 2019 came with 195/65R15 from the factory. In some overseas countries they also fitted 185/65R15 but all the ones I saw in Australia had the 195...
Pretty sure the dearer version came with 205/55R16 but I might need to check on that.
The 55 in the two sizes you've listed is the profile. So if one is low profile the other also is.
There's very little difference in the OD so your speedometer won't be severely affected either way.
Going to the 195 means less rubber on the footprint.
Also the lower the profile the worse the ride quality will be
If you have roadnoise issues that can be attributed to tread patterns or tread wear if they aren't new.
In any case many. FD owners comment on road noise.
It never bothered me though.
Thanks for your reply. The 205s are nothing like a low profile, they are bulky, standard tyre appearance and the road noise has been horrible since those tyres were put on. totally different to the original tyres which were low, sleek looking, quiet and lasted better.
Unfortunately the dealer I purchased the car through has closed down so I can’t verify through them, head office had no idea.