Have you seen the link for National Car Rental at the top of this page? My experience is that their cars are in new condition, their prices are lower than Avis, and the service is prompt and professional. See <A HREF="http://www.bocachicabeach.net/transport.html">www.bocachicabeach.net/transport.html</A> or click on the link below for more information on transportation within the Dominican Republic.