We don't have many cargo vans around here and no taxis at all, but 16 year old kids are just as dangerous as anything else I've seen. I try to avoid them like the plague. Between the inexperience with driving, the texting, the loud music, the 5 friends crammed in the car, and the "I don't give a **** about you, cyclist, I have a drivers license! HONK HONK!" attitude bad things are never more than a few feet away(or inches in some frightening cases). Fortunately you can almost always here them coming from several blocks away so they are easy enough to avoid.
Then again, I think that fast food driveways are about the worst place for cyclists in general. When faced with the thought of eminent food most drivers lose all courtesy and common sense.