There will be many 8x19" wheels out there which will fit your car. As you say, the problem is getting confirmation that any particular wheel will actually fit. When I was looking for 18" wheels for my VZ2 (I went for Borbet LX18), I found the Felgenoutlet website really useful for comparisons, fitting advice etc. They don't deliver to the UK, otherwise I would probably have purchased from there. You previously said you were looking for 18" wheels. Now you have the car, does your Certificate of Conformity say that 18" wheels are an option?