Does the Ford Ka+ have the same issues as the Fiat 500 that it's based on?

I recently put a small deposit down on a 2017 Ka+. Yesterday, a friend told me that it's a poor Fiat engine and bad gearbox. I'm now worried. Could you please tell me if his information is correct?

Is £300 too much to pay for a rear view mirror camera on my new Ford Ka+?

I've decided to get a Ford Ka+ with the top spec 85PS engine. My wife is slightly disappointed that it doesn't have a reversing camera and I've been quoted £300 for fitting a mirror device as a camera....