We went to Chinese embassy in Tbilisi on July 7th with LOI, guarantee letter, itinerary, ... all provided and stamped by NAVO Tours in China with whom we are supposed to cross China with our own vehicle.
The robot lady behind the counter asked for a residence permit (which of course we don't have as we are world overland travelers) and would not even look at our documents! (no matter which passport)
We checked their webpage: http://ge.china-embassy.org/eng/lsyw/t1071408.htm
and under 'basic documents', point 3; it says that we need a proof of legal stay or residence in order to obtain Chinese visas from their embassy.
So we sent a mail to the consul with copies of all the documents along with our Georgian entry stamps which allow us to legally stay in Georgia for up to 1 year.
Never got a reply. One of our Chinese friends called the embassy to ask if they had well received our request and they didn't care a bit.
Really disgusting people!
After been in China a dozen times for business and tourism purposes, I feel sick to waste weeks of my time to try to get a simple tourist visa when I will have to spend thousands of US$ on tax, plates, permits, guides,.. to cross this corrupted country with my own vehicle...