Maui - the Valley Isle

Let somebody else deal with the driving and the hassle of parking.
Lahaina is horrible for parking. There are public lots where you don't have to pay, but not a lot of them. If want to try parking along the back streets, don't - they are narrow and most of the spots are reserved parking.
Kihei is better but the shopping spots are spread out and you can waste a lot of time just trying to figure out where you want to go.

If you are going to Hana try one of the custom tour companies we discuss on the activity page, it is so beautiful the driver will be greatly deprived if he has to watch the road and believe me he will not have a choice! With the many curves and one lane bridges and the traffic you will want someone who is concentrating only on driving. The other benefits will be someone who knows the good places to stop and check out special sights and some of the companies actually pack a picnic lunch.

For those who just want to have transport for around town and down to the beach try renting a bicycle, moped or in Lahaina you can get those funky little golf carts.