Geez, as soon as I quit looking in North America, there it was!!!!
Actually, I've been playing on ypmap.com for a couple of days, and looking up store names on Google that I could read in my replays. The Great Eagle Hotel is what nailed it for me.
The course starts east-bound on Salisbury Road, at the New World Centre. At the water, you make the hard right onto a promenade, which I'm not sure is meant to carry traffic at all. This is what made the course hard to find initially, as there were no roads on the map with this shape. After a couple of kinks on the promenade, you go north back to Salisbury road (Sinopec bldg) and turn left. Right onto Kowloon Park Drive (at the YMCA) and the hairpin at the end puts you on Canton Road, southbound. Left onto Haiphong road, go under Kowloon Park Drive, then right onto Nathan Road, the bright neon stretch. Left onto Middle Road for a block, then a right, then left again onto the start/finish straight on Salisbury.
The roughness of the line on this course is not my driving line (I have gold on this test), it's the poor quality of my freehand mouse work.