Driving along the motorway earlier today, cruise control was on - nice steady speed. Suddenly a single audio tone sounded - and the engine management lamp (yellow coil shaped symbol) started flashing. The cruise control disengaged. I drove for another 5 mins at a reduced speed and stopped into a servcie station. The engine had not overheated - all other systems were normal. I set off again and after another 10 mins of steady driving, the engine management glow lamp came on again - but this time, I lost all power! Had to limp into the hard shoulder using whatever speed was left - and call the breakdown services. The car would not re-start. Fuel tank still 2/3 full. Got a tow home. Tomorrow, when the garages open, I will have to take it in. But what could have caused all this ? The car is from October 2009, and has just 59K miles on the clock - mainly motorway driving. This is the first serious fault I have ever experienced with it.