Car is Reving up and down, smoke filled the inside of the car, but didn't seem to be coming from the engine, out of the hood much. Now it barely starts, and I am afraid to drive it in case it's something major.

What is your question?

Engine is sputtering, and then reving up even in neutral, it is a standard. After driving for 5 minutes, the smoke starts pouring out the vents, and underneath the dash, but no so much out the hood of the car.