In late September 2016, I need to consult everyone about renting a car in the western United States. Dear experts, our group consists of 5 adults and 1 child, and we are planning to rent a car for a Road trip in the western United States in late September next year. We will arrive in Los Angeles, then transfer to Salt Lake City, and we want to rent a camper to go to Yellowstone National Park, and finally drive to Las Vegas to return the car. Which car rental company is more reliable? Is there a camper of this size available for rent? What is the minimum rental period? Thank you very much ? United States Q&A