the 225's will fit the front. they will not fit the back, but i do belive 215's will fit back there. i think though you would want all the tires to be of matching size. that way you can still rotate them for even tread wear.
Try going around Ford/ Jap wreckers yards, and see if you can pick up a 2nd hand set of wheels off a wrecked probe or mx-6, that's what I did, it's so much cheaper. Plus shipping from the US is going to hurt.
Blind Freddie, I see you own a '90 626 and you want to know what tire is the widest you can put on your car. With the factory offset rims, you can put a 215/60 tire and still have around 1/8 th of an inch to clear. When you start changing the aspect ratio etc. you may find other sizes to fit. Don't try the mentioned 225 mm tires on stock rims. I am certain they will not work.....
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