Ben is the guy that runs AVP.
I believe that he used to work at Sports Tech.
Has been writing a techie page in Audi Driver for about two years.
Seems to really know his stuff, and he is a huge Audi fan, I believe he has several of the older (early 1990s) cars including a very rare 90 quattro 20v Sport that has recently had an engine rebuild by himself, and a 200 that is supposed to be getting a 20v engine in it.
He's also a friend of another Ben, who runs Shark Performance, in the same area.