how to replace a coil in this car

Is this an Australian Ford?

yes it is

yes it is

This is a real pain to do, as you can see, you cant access the coil from the top of the engine, so you have to get in underneath. if this is a transformer coil (stubby coil with one push on electrical terminal plug and the lead, you basically have to do it by feel as you can't see the top bolt short of removing the manifold, there are normally 8mm bolts and best to use 1/4" drive sockets, refitting the coil lead and plugs are just as hard, you may be better of getting a mechanic to do this as you will loose skin and patience very quickly.

this is a 1995 ford fairmont 5 litre V8. Is it the same

No, been a while since i did a coil on a V8 model, they should be on top of the motor on the L/H/S i think, any way just follow the coil lead i don't think it is that hard to do on this model, you may have to remove the induction air piping to get a better view.