and I thought you shorten or get adjustable radius rods to increase castor and improve the car's handling... shows what I know!

a 195/50*15 should fit with gaurd lipping and some minor trimming from the front edge of the wheelarch opening (see below) IF its on the right wifth/offset wheel! But you will probably need to pump/flare the gaurd a little as well.



I also had adjustable castor rods on the car in that pic for more castor, so the wheel is further forward than would be standard. You may need to do that too, to avoid having to mod the footwell like this I did when I fitted bolt-on flares and much wider wheels.