If you have very poor spark, I would settle in and see if I could find out
why
this is the case.  You have replaced the easier parts in the ignition system
with no
apparent success.  Be really sure that your spark at the plug is deficient
before
you spend a lot more time and money.

Since recent model Renault's are not well known in the USA, I cannot say
much
about the type of ignition system used in that car.  We assume it does not
have
contact points and condensor, so we may suspect it has some sort of ignition
module, a sensor of some sort to trigger the spark, etc.  Unless you can
find
someone who can test these (?) for you, you may have to continue to diagnose
by replacement.

I offer you encouragement, but not a lot of real help, Im afraid.

I don't know what this car is, but clearly there isn't good HV coming off
the coil (which you probably could have verified before swapping all that
stuff out).

This means either the coil is bad, or the coil isn't getting the right
firing voltage because whatever fires it (ignition module?  Points?) is
bad.

Coils don't go bad very often.  Almost certainly it's whatever is driving it,
if you are getting a poor spark.  And you are sure you are getting a poor
spark, right?
--scott