Rebiuld Size Problems

Ok I have a really wierd problem Stock 90 Talon AWD TSi everything is stock but this is the wierd part wheels are stock but there 15" I was told by a number of ppl that the Talon came stock with 16" unless 15" tires can fit on 16" wheels (please dont laugh if they can Im with only a limited amount of info here) then can some one please help why????
Its really one S**ty problem so please help me

i have a 95 tsi awd and it came stock with 16s along with a couple of friends of mine

ERIC