Rim width: 6.5"
PCD / bolt pattern: 4 x 100 (for Vitz)
Tyre size: 185/55 r15 (very difficult to find/ almost impossible) . This low profile (aspect ratio: 55) sports tyre looks great on 15" rims (not properly captured in photo/ actually extremely beautiful).
As I had said earlier, the maximum rim width for 185 size tyre is 6.5". It could be dangerous to install 185 size tyre on 7" wide rims. Hope you are not doing this.
The oil is API SN / ILSAC GF-5. Best for Vitz as per manufacturer specifications. The Zinc and Phosphorus content for this oil is below 800 ppm. So, no problems with catalytic damages/ chocking. You will not find this oil in Pakistan.