You'll really need to enter into mini ownership with a sense of adventure, and a high tolerance level for having to faff about with it I guess is the tag line here. I had an idea of what I thought a mini would be like to drive before I bought my first one, and I can tell you - the reality was very different. I was amazed at how noisy it was, it wasn't very comfortable, it pulled to one side on braking, the lights didn't work right, and when I got it home it wouldn't start again as the alternator wasn't charging the battery. But despite all that, there was something about the wee car that just appealed to me. Over the years I've owned better and better ones, but even so they have all had their issues. I have never actually been left stranded by a mini, but I have bodged an exhaust together by the roadside with a length of wire, I have had to drive with a rag between the bonnet hinge and part of the wiring loom as it was shorting out and blowing fuses (yes, I had spare fuses with me...). I also drove a mini for about a year that would not start on the key but would bump start perfectly - so I had to get it rolling, jump in and bump it . Then half way through my 12 mile journey I had to pull over, add clutch fluid and with my left foot on the clutch pedal to pump it, and leaning round into the engine bay, open and close the clutch slave cylinder to bleed it (due to a leaking slave cylinder seal).
This might seem a bit severe and daunting, but I should point out that when I bought that first mini I knew nothing about car maintenance - I had some general engineering aptitude though. I'm sure if you choose wisely you will avoid any major issues, but I just wanted to illustrate how different mini ownership can be from a modern daily. If you genuinely want to become proficient at amateur mechanics, and you have some patience and a good sense of humour (the most important trait!) then you will enjoy the fact that you are able to do all this stuff and form a bond with the little car, looking down your nose at all those driving around without a clue about their cars
And if you join a club, you'll never be short of laughs with all the silly stuff that happens with minis. I remember a run where the lead car's exhaust fell clean off. We just lifted it up, popped it in the back of the guy on the run that had a clubman estate and carried on to the destination, where a few club members got the car up on some pallets that were lying around and fixed it.
So as said by many, definitely go into it with your eyes open. Minis can be very reliable in the sense that they don't constantly 'stop working' and leave you stranded, and in contrast to most modern cars you can actually fix many faults by the roadside well enough to get you home, but they will definitely throw up weird faults on a fairly regular basis if used daily. I personally don't always love driving mine, sometimes it annoys the heck out of me, but I always get over it and on a good day on a nice twisty road, there's nothing to beat it.
I would strongly suggest that you try to get an opportunity to drive a mini before buying though, just in case you immediately decide it's not for you. Though I doubt that would happen.
EDIT: A good impression of mini ownership can be formed by reading the long running thread 'What did you do to your mini today' in the Mini Chat section. You'll see the mixture of pride, frustration and humour that is part and parcel of mini ownership!
Edited by spiguy, 15 July 2017 - 10:43 PM.