Update: Here's the video:
I was really excited about this rally, which is dedicated to the race Czar Nick II organized 100 years ago. Not only was Medvedev going to drive his personal Pobeda, but the Ukrainian leader was supposed to drive a LuAZ.
So the leaders participated today by driving across the Russian-Ukrainian border. I've searched high and low through Russian and Ukrainian websites for a picture of the LuAZ. All I could find were reports that the Russian-friendly Ukrainian drove a Pobeda convertible instead. Drats. Maybe something will pop up on Russia Today. Stay tuned.