15" bunts are readily available from German Ebay. I got a set, had them winter chromed, and once I have time to drive my CD, they will go on.
Im not sure if I would or wouldn't trust Adsit... its more about if you can trust their manufacturer that they contract with...
The OP mentioned 15x7 and 16x8. Im not a fan of wider tires, rather some lower profile tires in a size with good options. So the optimal approach would be to make a size that would support a ubiquitous size that has lots of good options yet isn't too over the top in size and width (215/55R16 comes to mind as a good option), yet is assured to NOT rub on 107/116/123/126 cars...
