The Hartmans have put up another round of rare and unreleased items for sale on ebay. This time we have <a href="http://cgi.ebay.com/Transformers-G2-Megatron-ATB-MISB-RARE_W0QQitemZ220012312235QQihZ012QQcategoryZ4697QQssPageNameZWDVWQQrdZ1QQcmdZViewItem" target="_blank">Transformers G2 Megatron ATB</a>, <a href="http://cgi.ebay.com/Transformers-G2-Go-Bot-Prototypes-Set-1-RARE_W0QQitemZ220013179893QQihZ012QQcategoryZ4697QQssPageNameZWDVWQQrdZ1QQcmdZViewItem" target="_blank">G2 Gobot (Spychanger) Prototypes Set 1</a>, and <a href="http://cgi.ebay.com/Transformers-G2-Go-Bot-Prototypes-Set-2-RARE_W0QQitemZ220013181547QQihZ012QQcategoryZ4697QQssPageNameZWDVWQQrdZ1QQcmdZViewItem" target="_blank">G2 Gobot (Spychanger) Prototypes Set 2</a>. The first set of Gobots (Spychangers) include the prototypes for Prowl2 and Sideswipe which were eventually used in the Robots In Disguise line, and an unreleased Ferrari model. The second set of Gobots (Spychangers) include the prototypes for Sideburn and Daytonus which were eventually released in the Robots In Disguise line, and an unproduced Land Rover model. You can check them out by clicking <a href="http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZelrich">HERE</a>.