1st one was a company car, which I bought from the leasing company when I was made redundant, as the price was good, and it was a simple way to keep on motoring. Gearbox went bad on my watch - got it repaired by an independent auto-box specialist, but he warned that it wouldn't last indefinitely. Predictably the "we should change the car" had got no further than the "we should change the car" stage a year or two later when the fault returned. I could not in all conscience sell it privately, so I traded it at one of those places that were doing the (popular at the time) thing of buying cars to UK spec from dealers in France, Belgium, etc, where they were a lot cheaper than in the UK, shipping them over and selling them on. They neither asked about faults nor test drove it, just eyeballed it (and it was in good condition and I had given it a really good valet-level clean that morning), checked the service record and made me an offer. I haggled a little bit, so as not to look suspicious, and the deal was done.
We really liked the Scenic, so we got another one, assuming that we'd just been unlucky the first time. When the same fault developed (it started with a very occasional happening, which gradually got more frequent) we didn't hang about, but got shot. Again traded, but for a used E-Class estate.
Interestingly, the first Scenic was my first auto, and I got that for the simple reason that I found when I'd got the seat where I wanted it I had to lean forwards very slightly to reach the gear lever, and I thought "I can see that giving me backache after a while", so I got the auto. Almost all my driving is urban or motorway, hardly any hustling down twisty, open country roads, and I can't see myself ever wanting a manual again.