Travel to Xinjiang by chartered bus, four people, five cars or seven business cars?

If there are four people, you must charter seven cars. First time, three people, Buick GL8 business class was packed and comfortable. Because sightseeing in Xinjiang is a long journey, it is too hard to squeeze and sit, and the feeling of the whole journey will be greatly reduced. I don't know how much it costs to hire a car, but I think it's hard to go once. You must like this trip. It costs money. I went there twice this year, and it felt very good. I hope you have a wonderful trip!