The dreaded DI packed up again on my 9000 CSE by sudden death. Luckily I was only 6 miles from home and not on the main road. At 185k miles, this is the third DI that has packed up. Hence 60k is about the expected lifetime for the DI.
Then I thought came into my head: I sometimes drive to London and park in an underground car park near Tottenham Court Road and Bedford Avenue. The entrance to the car park is a long, narrow and very steep tunnel going down to the car park. Using the confined slope on good days is already scary. What about DI packing up down there when you try to exit? I can't imagine that AA or RAC will be able to tow the car up from there, and staying down there for days will be hugely expensive. By the grace of....
Ideally, I should have an extra DI in the boot, but that's also an expense.