MY FURTHER UPDATE (Wednesday evening, 10th Aug)
The dealer did come up with a loan car for me last Saturday, for four days.
That was under their optimistic asumption that my new car would be working by today ....
But not the case! The replacement part from Germany arrived but it has not cured the problem. I'm sad (sad and angry), but by now, I'm afraid, not in the least surprised. My feelings about BMW have changed from confident to sanguine but now I rate them as quite incompetent. Can it really take them a fortnight to diagnose a fault? On a new car?
Well, they're having another go, and have ordered yet another part. I have told them (frankly my friends are telling me I have already been much too long-suffering and indulgent) that I am giving them 7 days to get the car working or I will reject it.
I will follow up on the advice given by the links kindly given by MikeS earlier in this topic, when he advised me to reject. Thanks for the advice, MikeS, and I would appreciate any other help on the process from any others here.
I have spent the afternoon diddlin' around on the internet (a process which I notice is nowadays pompously termed "research"!) to identify a model of car that most closely appraoches my ideal - that would be a small EV REx with an electric range of 100 miles and a petrol range of >200 miles on top. The next nearest to the I3 REx for that seems to be the Golf GTE Nav. It's power/speed exceeds what I need, but it has the possibility of all the fancy boystoys gizmos, which I fancy as a once-in-a-lifetime indulgence. Has onyone got any suggestions other than that Golf?
As far as price is concerned, for a similar spec. to the i3 it is a couple of thousand pounds more, and I think the OLEV grant discount is less. They are quoting a similar delivery time to what BMW quoted for my i3. I notice that they give a "track and trace" system to follow the production delivery process (which is what US customers of BMW seem to get but here in Britaiin BMW does not offer this.)
By next Wednesday I will know which way things are going. It looks like a German car, either way.
Any thoughts, about my predicament, anyone? I'd be interested in comments from non-UK readers, too.
More anon .......