Very poor advert considering they are being sold by a specialist!
Porsche wheels are generally/mostly PCD 5x130, however the advert mentions "WILL ALSO FIT OTHER VEHICLES SUCH AS FERRARI 355 ETC."
The Ferrari 355 uses PCD 5x108 and that's without taking into consideration the offsets which are not clear from any of the pics and not mentioned in the text. :roll:
Edit: Just seen 108DP mentioned in the text which would indicate that they are not Porsche fitment at all.
C.