Intrigue wheel centercap measurement needed

[Miko K]

Hey guys I need the diameter of the center cap of a Olds Intrigue please:

 

http://www.originalwheels.com/oldsmobile-wheels/images/oldsmobile-intrigue-wheels-6030-b.jpg

[l67ss]

Quessing 4.5"

[Crazy K]

115 mm? same as the diameter of the bolts pattern...

[Miko K]

I was asking because I wanted to swap these onto C5 thin spoke wheels but they won't work. I will have to come up with another way to put an Olds rocket badge over the vette logo.