I dont know a whole lot about the supra as it was never a consideration when i was looking for my car. Its looks alone deterred me right from the get go.
2 observations come to mind however, One being the laugh I got when I upgraded my gtst brakes to a brembo setup and had a supra driver climbing all over me to sell him my stock nissan brakes. Apparently the nissan brakes are considered an upgrade on the supra. (rolls eyes)
The other being the lack of supras I see at performance venues, I regularly attend and participate in my local drag (willowbank) tnt nights and time attack (QLD raceway), There are plenty of skylines mostly street driven pounding the asphalt at both venues but it is an absolute rarity to see a supra at either.
Most of the supra activity around here involves bling wheels, A very large ironong board on the boot and just cruising the main street with drivers cock hanging out the window saying "Look at me"
One can only assume that the line attracts a sportsman whereas the supra attracts the posers. To each his own I guess but the posing deal leaves me cold.
Also interesting to note is that I see and am involved with far more skyline peeps than supra types but i have seen as many if not more of these so called unbreakable jz motors come to grief than RB's.