Viktor, if the wheels you're looking at are ET50 then you'll need spacers to get them out to the right offset (ET35) anyway.
I'm sure you could buy hubcentric spacers that fit over the 57.1mm spigot on the car and in turn the spacer itself has a 56.1mm spigot, allowing the alloy to fit onto the spacer Thers's a couple of guys on ebay that do hubcentric spacers. Give them a call and ask them if it's possible. My understanding is they would have to do is shave 1mm of the spigot on the spacer to get the wheels to fit.