A new automotive museum, with a slant to things military, just opened in the village of Ivanovskoye, near Chernogolovka, a “science town” ~40km north-east from the outskirts of Moscow. Same direction as “Star City” and Monino, with its Aviation Museum that also gets you travellers excited. Can be fairly easily incorporated into the Gold Ring tour.
Museum site: http://www.roadplanet.ru/home/reports/567/ (Russian only).
You may want to check out Chernogolovka, Monino, Sergiev Posad and the area on my www.staritsa.info.