I have a set of 18x8 ET45 RS6 replica wheels which I removed from my Octy before I sold it with the original wheels on. They 18x8 ET45 with a PCD of 5x112, and currently have 225/40x18 tyres on them, now the question is will they fit onto my Superb2.

I know they will physically fit onto the hubs, but will the offset work and is the tyre size correct. My car with its 18" Thermisto alloys is locked away in the garage so I cannot go and check the tyre size.

I am really just curious, as it may save me some money in the short term when I need some new tyres. The tyres on the RS6 wheels are barely run in.

Will be fine

Tyre size is the same. Only the width (8 instead of 7.5) and offset (45 instead of 46) are a little different. Should fit brilliantly (stand out a little more, so they will fill the arches better).