Fiat is a minor marque, with few dealers and a bad reputation for customer service. Anyone who has chosen to own a Fiat, has, by their actions, chosen NOT to own a Peugeot or Citroen. They have their reasons, and anyone at PSA who ignores those reasons will lose a customer.
I've always been happy with Vauxhall products, but now having driven the lastes Corsa, will not consider a Vauxhall again. It was horrible. Had it for half a day, mostly driven by someone else for training purposes, and that was still too much. If Fiat become badge-engineered Peugeots, there will be no reason to buy a newer one.
Slippery slope. I fear that driving in the future will become soulless. This will lead to worse driving, as people don't care. Reliance on automated vehicles will reduce expertise more, leading to serious problems at those moments when the automated car says, "over to you". Unless all our country lanes become two-way, normal width roads, and everyone has a designated parking spot, automation will still have times when it cannot cope. At that point, drivers will have very low skill levels.