My husband was walking our two very large dogs in Sydenham Hill woods early one morning about 9 months ago and encountered what he believes was 'The Sydenham Panther' whilst it was out hunting. As he had our two large hunting dogs with him (who wouldn't go anywhere near the black beastie) he was able to get a very good comparison of size.
In our area several cats have disappeared (including two of our own) and I am sure I have smelt the panther on one occaision & given how many foxes we have in the area and having been around big cats - I can distinguish between the musks! Whether it's survived this winter...