I agree. There really is not enough time to get from Xingang to Beijing and really see anything. You would basically drive to Beijing and then turnaround. It is 2 to 3 hours from Xingang to Beijing. We had a private driver and car when we were there and he made it to Beijing in a little over two hours but he drove very fast and the roads and skies were clear.
I wish I could remember the name of a little restaurant we stopped at, in the port area of Xingang, when we returned from our tour. We treated our guide and driver to dinner and they chose the restaurant. It was a just a small place but the food was phenomenal and very inexpensive. We really enjoyed it and the guide and driver took quite a few leftovers with them.