Bought some new wheels for the MR2 and when I came to fitting them I realised the locking wheel nut on the back is seized pretty tight.
The problem is that while trying to undo it I've managed to elongate the holes in the nut so it now wont get any grip...any ideas how to get the little bugger out now?

The problem is that while trying to undo it I've managed to elongate the holes in the nut so it now wont get any grip...any ideas how to get the little bugger out now?