driving home tonight, rev counter suddenly went through the roof, pulled over and white smoke began to fill car and surrounding area. Turned car off but engine was still running ?!?!?! then stopped, fans went off after a minute or so but car will now not turn on. Any ideas as to what is wrong with it.

P.s. the light has been on for a few days that usually signifies the ignitors are being cleaned to burn off the carbon, and there has been a little smoke form the back as usual.