A Note on the car, definatly take a convertible Mustang, usrentacar.co.uk is very good. We did Vegas to LA in one in April, lovely drive. But do bear in mind that you can only get one case and a hand luggage size case in the boot. So any other luggage could be on show, depending on your plans. Also, if they happen to have no Mustangs, some firms might offer you a Camero, which has even less boot space!