My husband and I are planning on driving to Vegas to see my brother. We only have 12 days to drive and visit, so we are hoping to drive 15hrs a day and make it there in three days. According to all the directions it takes between 37-41hrs. We are only stopping to eat go to the bathroom and 2 nights to sleep. We are leaving on a Tuesday morning and hope to get there late Thursday evening. Is this possable or even realistic?