SUDDEN FAILURE OF THE POWER STEERING, AMONGST OTHERS, RIGHT IN THE MIDDLE OF A CROSSROADS. VERY DANGEROUS EMERGENCY STOPPING OF THE CAR, ENGINE STOPPED, ALL ALARMS ON, STEERING NEARLY IMPOSSIBLE TO USE WITHOUT POWER. HAD TO TOW THE VEHICLE TO SERVICE CENTER. VOLVO CLAIMS THIS IS NOTHING MORE THAN A COMMON PLACE ALTERNATOR FAILURE (THERE HAS BEEN A RECALL CAMPAIGN FOR SIMILAR PROBLEMS WITH AUXILIARY BELT TENSIONER). POWER STEERING FAILED ALTHOUGH BATTERY WAS FULLY CHARGED. FOUND ON THE INTERNET THIS OCCURRING SEVERAL TIMES TO OTHER XC60 DRIVERS. AS ALTERNATOR FAILURES WITHOUT ANY WARNING ARE SO "COMMON PLACE" AND AS THEY CAN HAVE SUCH VERY NEGATIVE IMPACT ON SAFETY, WHY ISN'T THERE ANY BATTERY-BASED POWER STEERING SURVIVABILITY AS ON MOST OTHER VEHICLES?