Sounds like fun, I'd love a road trip through Asia's mainland. I wonder how safe it will be. Just thinking about the two locations and drawing a strait line from Brussels to Hong Kong seem like you might be traveling through some dangerous areas. Not to mention some of the mountian ranges in your way.
I kind of fancy the idea of travelling that distance with a Fiat 500 or a BMW Isetta. Maybe even a Citroen 2CV... just like in the Dakar rally this year. Too bad it had to give up. But still a very valiant effort.