Here's the ranking:
Sour Patch Kids rank number 1, because they are not too messy and easy to eat. If you are the driver or a supporting passenger on the road trip, you will love this poppable candy.
This cheesy cracker snack ranks number 2 due to being easy to eat and a less messy option, similar to the number 1 pick.
This snack ranks 3 on the list because, while some granola bars are not messy,some are very messy. In some cases a granola bar is not worth eating during a road trip if it means you'll have to vaccum your vehicle after eating it.