I should have read all the way through my Maui guide book, then I would not have chosen to drive all the way through the Kahekili Highway. This drive made my heart beating wildly and put me right at the verge of a panic attack. It is no highway!! More like a narrow path up and down the hills with millions of curves and ...oh did I mention...most spots only allow one car. So what do you do if another car approaches you. You hope to find a spot wide enough so it can pass. If not you have to back the car downhill at the worst, around some bends until you find a spot. i had to do that with a huge jeep and it took me forever. Scared that I would run the car either into the rocks on the one side or down the cliff on the other side. I managed, but not without leaving a dent and some scratches at the ar bumper.
This road is not worth it. You cant concentrate on the beauty of the natu, as you are too scared if you make it out of there. If you don't feel comfortable driving backwards downhill, don't do it!