I believe they're based on 17". Italo is just playing around with different sketches, It's a fasinating process the way your perception of one changes over a few days and when he replaces it with another the one you previously thought looked really good then looks a bit naff.

I'll keep you updated, flat out selling everything car related I own at the moment, I'm amazed at how much rubbish I have, and it is all selling well on eBay. Garage next.