No must have valid license or subject to impound
For New Zealand a vehicle can be registered with a valid passport.
No. NTSA guidelines require a passport (foreign or US), US passport card, or US drivers license or non-drivers license.
It is still possible to cross the US border into Canada or Mexico with only a drivers license and thus without a passport.
No, you can't
Yes, but you must have an international drivers license or drivers license paired with passport and major credit card.
No. NTSA guidelines require a passport (foreign or US), US passport card, or US drivers license or non-drivers license.
No, you need a passport to enter another country.
Yes, you don't need your drivers license for that. A birth certificate and some other papers will do.
Start with your birth certificate. Apply for a passport card - or a passport. Take that in to the drivers license bureau - some states provide an ID there. In most places, though, the passport trumps all.
It is advisable to have a passport but a citizen of Mexico or the USA can do this with a drivers license.
No. You need you passport.