about 30% to 40% of the random ones I see driving around are driven by "girls".
Many of those "girls" are well into their 50s or 60s.
It is not an exclusive male club or anything just rare that the ladies hang out on forums or car meets. They are too busy driving and enjoying their cars for such things.
Oh and for the record the Lava used to get very frequent comments from females of all ages. The Hakone probably gets twice as many. It is all in the colour.