Hi, this could be caused by petrol wash, usually occurs after being driven a very short distance.I have seen it on some VW's and jags, several possible cures,first and easiest is to try tow starting,second is to remove plugs and spin engine over,refit dried plugs,charge battery and give it a try,third same as step two but put several squirts of engine oil down all spark plug holes before refitting spark plugs.Also new spark plugs would help if any doubt about the originals. Good luck.