In contrast to my post in the 'other' thread..the car is OK.
Seems it was my OH's fault because he moved our car forward three feet yesterday and didn't let the fuel injected engine run for long enough and the result was it was flooded this morning.All it needed was a hard foot on the accelerator to sort the issue out.
Had a chat with the chap about stupid mistakes and learned that the RAC vans are now set up to drain fuel from car tanks that have been contaminated by the wrong fuel.Apparently he has been getting 3-4 such situations a week.
He also showed me a special cap invented by one of their roadmen and financed and sold by the RAC which fits over a diesel cap and prevents petrol being put into the fuel tank by mistake.