Its not easy to advise when you are left to sort out other people's poor repairs - it would sound as if the last owner just used what came to hand, and probably sprayed over everything (without even rubbing down the edges of the flaked paint)...
How did you guess! How far out is that colour match
?? I think my 2yr old daughter could have done a better job with her wax crayons!
Heres the photos, i have manged to t-cut it back this far as it was covered a lot more (nearly the width of the bonnet and about a third down, this last bit doesn't seem to come off as easy and my poor fingers are killing me!
You can see the flaked area of paint at the top of the close up picture. The different shades are from where i have been rubbing the paint off (You probably know that).
Ignore the cloud and tree reflections in the pictures.
Many thanks Daniel