[Enraged]

white smoke is usually antifreeze. you could have a dread blown head gasket.

DO NOT DRIVE it at all. call toyota and talk to the service manager. tell him the complete situation, and dont take any crap. the Toyota mechanic removed yoru spark plug, letting oil and god knows what into the cylinder. he should have removed the oil first. becuase he didnt, it is TOYOTAS responsibility.

if you have trouble with them (they treat you liek crap, they dont beleive you, etc) get yoru parents to talk to them (im assuming your young?)... keep us updated.