I am a bit confused about the zones in Manzanillo. As far as the taxis go. Is there a map of zones available? If so, where do we get it? Or should we just rent our own car, which is what we are thinking of doing. And, if we do rent a car, should I book it from home, or just rent it right at the airport? Any difference in price? And, does our auto insurance work down there, or do we have to buy insurance from them? AND..... is it worth it to rent a car? Thank you!!