Another anecdote: Drive Now (carsharing corp) has i3 in its fleet so you see a decent number of them in large German cities (like Berlin, Hamburg, Munich, Cologne), definitely more often than Teslas:
Teslas are also very common on the streets. If you drive through the city you're bound to meet at least 3-6 Teslas.
In Amsterdam almost all airport cabs are Teslas.
I have no idea if this airport is under such a mandate, but it wouldn't be surprising.