a few months ago started developing a running issue where on a run and on dual carrigewaywould temporarily pull back for a few seconds then correct itself (light flashes up at time). Then went to Lutonairport a month ago and 25 miles into 100 mile journey did it again but didn't correct itself. drove 75 miles under 2500 revs. when got back inafter pick up, fault had corrected and drove allway home with no problem. Sunday did the pull back thing twice with my wife during day and after she finished work in evening wouldn't start. lights on dash but half heatred grunt then nothing. tried jump start no wroking, then charge battery and tried again yesterday with no change. Any ideas as i've lost faith in this car now!