Taking 10 month old on 12 hour road trip?

We went on a 14 hour trip with our daughter when she was 10 months old and she did really well! One thing we couldn't live without was bottled water to make her bottles (formula feeder) that way we didn't have to stop. Does she watch little einsteins or anything? Mine liked Barney and we had a portable DVD player that took the edge off. The drive will take a lot out of her regardless of how much she sleeps in the car, she will probably be a little grouchy but should still sleep ok at night.