[Snowdaddy]

In UK none come with the 16 inch wheels
Most have 17 inch wheels (including FR)
Xcelence Lux, Xperience Lux and FR sport have 18 inch. (more a vanity / looks idea, not very practical on our potholed roads)

Those who prefer a more comfortable ride, and less crashing over potholes can change to smaller wheels, but choice of tyres makes big difference too. The factory default is Eco summer tyres which save a marginal bit of fuel in tests at warm weather, but are very hard in cooler weather (and that is lot of year in UK). Changing to premium all season tyres with their more flexible compound improves ride a lot (and has the bonus of coping with cold rain, slush, sleet, frost etc. and on rare snow days will allow you to drive home).

The standard Arona tyre sizes are :
195/60 R16 89H (winter tyres only) 640mm diameter
205/60 R16 92H (653mm diameter)
205/55 R17 92V (658mm diameter)
215/50 R17 91V (1.5 tsi only, but not in UK), 648mm diameter
215/45 R18 89V (650mm diameter)

Obviously more rubber you have the more it will absorb bad surfaces
205/60 R16 side wall height 123mm
205/55 R17 side wall height 113mm
215/45 R18 side wall height 97mm

I have 205/60 R16 winter tyres and ride is lot more comfortable than the 18 inch with summer tyres car came with (although because I swap positions when they go back on, have now done 40+k miles on the original tyres, and all 4 still got about 3.5 - 4mm tread).