From what I heard from my friend who is a fan of subaru, he said
nowadays wrx or sti or ts can be mod with the same design and
appearance. even TS oso can fix on disc and use brembo cover to
make it look alike. Dashboard, gear stick, speedo, spoiler, kit,
exhaust, pratically all the decorative items can be changed.
There are a few ways to see but quite hard.
1) the under chassis( if you are so eng to bend down and have a
look)
2) run with it and see if it has the torque in it.
3) ask the driver pull over, open front bonnet for u to see( as
though that driver will do that...lolz)
But the best is...... ask that driver show you the log card
lor.....lolz