As far as production numbers go, the highest I've ever seen was an '89 in the UK... #10,036. I'd say that goes with the info on that Russian site. As further info, several cars I've checked(mine included; #2,914, with a manu. date of Nov. '87) fit that bill as well... but the ST165 is definately a very rare car.
Edit... my car is black exterior, black interior. It has A/C(that was an option; very few '165s didn't have it though), power windows(I think these were standard; _every_ GT-S and GT-Four I've seen has 'em), ABS, and sunroof. No leather, which I kinda like... I'm not much for leather in a car.