The British government cancelled it a long-long time ago because it was too expensive. It would have been the most advanced design at it's time of entry but it's just another military affair ended by that strict politcal wife...
Another reason it failed was because some people in the Government thought it was better to buy US built aircraft. Personally I think someone had friends on the other side of the big lake.
Definately. I belive that in the 80's the government looked at reinstating the porject but cancelled in again after tests showed that it was much better than the Tornado...
Yes one was built, when the project was cancelled on April 6th 1965 all toolings, drawings and parts were destroyed or scrapped, with 2 incomplete prototypes surviving.