Do you belong to the Porsche Club GB, because if you do you will get a bit of a discount with RAC.
In 2003 we went to the South of France in our Porsche 944 S2, and it broke when we arrived in the South of France. We were covered by RAC breakdown and recovery. A part on our airconditioning broke, and it took them 2 weeks to fix it. My husband drove on Saturday morning from South of France to Le Mans we arrived at 3am on Sunday. We went to sleep for a couple of hours and watch the last 6 hours of so in our ACO grand stand.
It gets better they never re-gased our air conditioning, so we drove to Le Mans in temperature of 36C outside temperature. We had to drink warm water.
The RAC did pay for our accommodation in the South of France.
We now have a VW.