Caz - I usually check Price line Hot Wire or similar sites for Car Rantals. There are several on the Hill above Sangster airport (Queens Drive) that shuttle you back & forth and are better deals then the National Companies at the Airport. Rented a little Nissan in December 2011 for $ 20.00 a day from a place there and it was perfect for Jamaican roads. I think they were called UcalAutos.com. Shop around