Engine blown? Gasket? Piston?

What is your question?

Driving like normal, hear a loud sound from inside the cabin coming from the passenger side. Almost sounded like a motorcycle. Checked under the hood and nothing seemed unusual, then while driving out of no where I heard a pop noise saw a little white smoke and the car was no longer running. Belts look fine.

What makes this problem better or worse?

Unsure, the car will not crank/start, or even attempt.

How long has your 2006 Mazda 3 had this problem?

Today only, randomly.