It doesn't make sense for the used GR86 market to be strong at the moment, as you can still grab a brand new one at its retail price.
Wait till 2025 when the new (and pre-registered) GR86s are gone from the market, and the realisation that all brand new cars come with forced ISA "enhancements", to really see what the market demand is like for the last generation of old-school sports cars.
Selling right now is not a wise move, unless you have to, or anticipate WW3 to start before next year.
Some reading material for the curious:
With the General Vehicle Safety Regulation (EU) 2019/2144, the Commission has taken unprecedented action to help the transport sector and public authorities prepare for the mobility of tomorrow. The objective is to protect Europeans against traffic accidents, poor air quality and climate change...
road-safety-charter.ec.europa.eu