Hi Chris,
I would at least start by looking at the fuses. Check the fuel pump fuse. Not entirely sure where they put it on the 1.2 (someone else might be able to help here) but check the fuse board at the end of the dash and if the car has a black plastic box next to the battery, could be in there. (like the 172)
If the car was running and stopped, I know it sounds silly, but is it out of fuel ?
Also worth checking is the crash switch, again not sure on your car, but on the 172 its just behind the battery on the top of the strut. Round red rubber thing, push the end down see if it re-sets. You could also confirm if its working/faulty by taking it off and shorting the terminals with a spare bit of wire.
I will have a quick look on autodata and see if I can locate the components I mentioned, sorry I am not more familiar with your model.