Same as this answer :
How_do_you_remove_the_headrest_from_a_2004_Ford_Crown_Victoria_seat
sawzall
How do you remove the brake light cover on a ford focus
how to remove hub assbley from car 2000 ford focus
Yes.
I have the same problem on an alfa 156 - i want to put seat covers on but can't remove the front headrests - help !
Chainsaw
Remove it.
it takes a 7mm Allen wrench to remove calipers on 2003 ford focus.
From the inside.
Buy a Haynes manual and read it.
From behind.
with a crowbar