The RAC have impressed me.
Whilst driving to my fiancée’s parents’ at the end of last week, the car conked out (while on the M6 Toll).
Fortunately, the power simply seemed to dissipate rather than instantly disappear, so I was easily able to slow to stop by an SOS box.
I have a mobile phone of course, but the SOS box allowed me to give a very precise location.
Calling the RAC was straightforward, just a matter of answering questions and confirming my own and the vehicle’s details.
The RAC man (an ex F1 engineer, apparently) arrived within 20 minutes (better than the estimate given on the phone), having called my mobile to let me know that he was a couple of minutes away.
He identified the problem simply by listening to the engine for a couple of seconds, and confirmed it by replacing the dead coil (a transformer that supplies the power to the spark-plugs).
I’d be very happy to recommend the RAC to anyone considering them (or their competitors).