For the first two weeks and first 1300ish kilometres of my journey I've almost exclusively been using the G110 National Road, which runs from Beijing to Yinchuan.
It goes from over mountains, passed the Great Wall and it's watchtowers, over desert, over grassland. It has one of the world's mega cities book ending it. It's Mongolian, it's Han, it's Hui, it's everything. It's a great road.
You could even drive it in one day.
This is where I update on my progress. Expect lots of fabricated statistics and dated music references.