I've got 4 center caps for sale. They are the 2 1/2" diameter caps from the Solstice which will also fit the Camaro, G6, Grand Prix and other GM models.
Caps are in great shape with no broken tabs or scratches. These were well cared for as they were used on my Camaro wheels for show season. I'm going in a different direction so I am selling. $30 shipped to the lower 48.