175/70R13=575mm
205/50R15=611mm (6.26% larger)
205/55R15=607mm (5.57% larger)
195/50R16=601mm (4.52% larger)
now either you've given me an incorrect stock tyre size or the ones you want to fit are WAY too big.
please confirm and let me know because as it is the size you have claimed for stock seem to be the same size as the ones on e the vitz (infact even smaller than that)
as it is you can fit the following IF you tyres are as you have stated above:
195/45R16 (1.22% larger)
205/50R15 (1.91% larger)
185/55R15 (1.74% larger)