4x100 is correct, but -25 won't go anywhere near fitting
Even +25 is a bit of a stretch. Standard offset for 112s is about +40, so I'd go something around that, nothing lower than +35 otherwise you'll probably have wheels sticking out of the guards and major scrubbing issues.
If you're getting them from a shop of any kind, they should have a book with the listings of each car and what the respective PCD/offset etc is.
Oh, and the centre hole should be 54mm (I think), if it's any bigger than that you'll need hub rings to space the gap so that the studs don't bear the weight of the car