225 35 18 tyres all round is a little odd but assuming offsets are et 47 on the 8j & et 50 on the 8.5j the wheels should be genuine ( most rep sets are 4 x 8j et 40 - et 44) & will fit as OEM 108s , 107,s etc
I would guess they have been on a very low / slammed / Marius modded car hence the stretched tyres so be ready to fit fresh rubber for your own car