Several autoboxes, electrical faults, etc...
His is the boxer diesel auto.
One of the times his had shat itself they gave him one of the 400hp petrol ones on loan*. To it's credit, it did make it back up heart attack hill at dotty alright.
*He did insist that while they were busy fixing his piece of junk that they didn't give him, as he put it, some beige hairdressing shopping trolley. I don't think he liked the 20mpg though.