infamousc3

So I was driving my 240sx with a redtop sr20det. While driving on the freeway the car makes a sputtering sound and completely shuts off. I tried to throw it in gear while rolling and it turns on for a little bit then sputtered again and died. I can no longer get it to start and it sprayed oil all over my motor and is slowly leaking from what it looks like possibly the front main seal. I opened the oil cap and it was smoking a little on the inside. The car attempts to turn over but will not start. Please help me zilvia! Thanks for any advice you can give me!!