Dude, you're asking for guesses and that's all you can possibly get from us. To get an answer you're going to have to either just try it and hope it works, or LOOK AT YOUR CAR, find out where it's rubbing, and compare the measurements of the wheel/tire combo you have to the one you intend to install.

If you're 185/65's are rubbing because they're too tall, then a 205/50 isn't going to be much shorter and a 195/50 might be a better option. Use the tire calculator I provided to get some rough numbers, that's what I just did.

Now, if you've got a GC kit, you can deal with that kind of rubbing by (drumroll please) raising the ride height just a little bit. Problem solved. Hint: Putting your car as low as it will go is not necessarily going to result in the best handling.

If your rubbing is due to width (rubbing fender lips or struts), then you'll have to either get a narrower tire or fidget with the wheel offset.

None of this is rocket science, just LOOK AT IT, do a little research and figure it out. Quit asking us to guess for you, you're not doing yourself any favors by having us guess at something we haven't seen.

If you want a guess... 205/50 won't fit without rubbing more than your 185/65's do. I'd go with 195/50's and be happy. Raise the car about 1/2" if you have to.