I was scrolling threw some pictures and saw a s4 with fd rims? how is this possible I thought the offset was different?!

 

you buy adapters or spacers and put them on then put the wheels on.

 

IIRC they are 16 x 8 +50 offset for reference. Stock tire was 225 50 16 but 245 fit fine...on the wheel.

 

Personally I saw a set on an FC and I was not impressed.
It could have just been the spacing but it was like an Spiked collar on a Chihuahua..lol.!
There is a wheels section on the forum that you may want to check out.
When selecting wheels for the Car,the offset will determine the look and Most importantly the FIT.
stock wheels are 15x6 with a 40 offset..Vert wheels are 15x6.5 and 40 offset..
TII 16" wheels ..same offset.
I run 17x8 31offset.Different tires on front and back but If I did it again I would stagger the wheel size too.