306 steel wheels.

[Janne L]

Been looking through servicebox during the morning, there does not seem to exist a 16" 7j et20 steel rim, all et20 I found are 6,5j. What I did find was a 16x7 et32 rim from the 3008 that would fit with a ~13mm spacer.

5401 R7

Hi Janne, Does service box cover Citreon wheels too?
I've been wondering about the 3008 wheels! The 4 stud 18" alloys look great on the 3008 but would they fit on a 306 with some rubber bands for tires?

Not straight on, you'd need spacers since I suspect they'll contact the strut, and you also have to widen the arches. If you space them out to about et10 they'll be 10mm closer to the strut than the stock wheel and poke out almost 30mm more!
Also you'd need a 215/30-18 or 225/30-18 tire, and I have no idea if that's available.

Edit: found 205/35-18 tires online. Would probably look silly on a 7,5" rim though.