Has anyone used a taxi from Pingyao to Xian? How much would it be for the trip with some stops

There is around 500km for the journey, so it may be a little hard to take a taxi to travel. If you are intertested, rent a car and a good driver for your trip. Also you want some stops on the way, the cost shall be expensive. I am not clear about the exact fare, but certainly more than CNY1,000!