My locksmith cuts and programs key for all cars. If he can do the old Renault card key (that most will not touch) he can certainly do a Fiat. So my comment is entirely relevant.
apple and pears
Corsa C
second hand fob £8
transponder chip £4
key cutting £10 new blank £10
opcom programme to programme key £20
If you already have opcom £32 to replace a key fob then sync the new remote
I organised a Corsa B all keys lost recently.
That included call out at night, breaking into the car, stripping a lock apart to cut a new key. £116 cash
VW Caddy
key £10
cutting £10
programming £50
someone else to do it for you £70 the sync the remote
Escape key card Renault Garage in Rochdale £80 all inclusive or £130 main dealer. By the way there are a few DIY fixes for this key card and only occasionally need a new one
Fiat requires a preprogrammed key
https://www.thmkey.co.uk/zed-full-key-programmer £3.5K + VAT one of the that can preprogram a fiat key
key blank £10 plus cutting £10
remote with transponder £28
MES or Delphi to add a preprogrammed key to the body computer not needed if using zed-full
here the rub. Because there is no cheap DIY way the going rate to preprogramme a key is over £200 by most auto locksmiths
fiat wanted £240 in 2016 I believe someone was quoted much more recently
someone on this thread were charged £160 cash which is close to £200 if vat was added and the cheapest I have seen although Castle Locks on here charge £150 but dont seem that active at the moment I suspect they would also need to see the car.
Yes its a rip off. The whole process to preprogramme a key takes less than 5 minutes and is in my opinion a semi skilled job. You still have to pull back the £3.5K invested in equipment.