My 1991 non-turbo Mercury Capri started fine last night but while idling, the Air Bag light began to flash and the Battery light came on. Not wanting to travel I turned off the ignition switch. Immediately I attempted to restart but nothing... no engine turnover, no clicks, no idiot lights on the dash, nothing. Turned on the headlights which opened and were of normal brightness. Turned the key to start and still nothing. The headlights did not dim at all during this attempt. Car's been dependable otherwise.