I live in small city near Helsinki with approx. 9000 people (yes, 9000 is enough to be a city in Finland) and work in Helsinki (our capital, +600k people). I drive almost 19k miles per year around Finland and I have never seen BRZ and actually saw a GT86 for the first time last week.
Totally 42 GT86 and 2 BRZ were registered in 2013. Most popular car model was VW Golf with 5064 cars registered in 2013.