Also Prodrive doesn't make any wheels for our cars... Don't know why this confuses so many people. The P1 are properlly call OZ Prodrives (prodrive being like superturismo or superlegga it's a model name). Yes they are standard on the Subaru Impreza P1 and were designed for this car, but they only have Prodrive on the wheel, they are made by OZ.
As for the P7's.. I think they are made by speedline, but I'm not sure about that either.