16” vs 17” wheels §
The 16” are all black; the 17” have chrome spokes. Beware – used-car ads have been known to get it wrong.
There are also accessory 17” wheels, pictured here below the standard ones.
The 16” have slightly better range – their WLTP range is 137 instead of 131 miles (source, p. 47).
The 16” may be a little quieter and the 17” may handle a little better in corners (source, source).
The 16” typically come with Yokohama BluEarth tyres; the 17” with Michelin PS4 tyres (source).