This is a Vintage 1979 Milton Bradley Big Trak Transport Tank in GREAT CONDITION!!! It has limited testing because we do not have the manual to understand all of the programming for it. We put batteries in it, turned it on, pressed the "TEST" button and it made some sounds, drove forward then backed up, made some more sounds and stopped. That is the extent of our limited testing. As far as condition, this is in really GREAT Shape and well cared for. There are NO visibly cracked, broken... or otherwise damaged parts or areas. The battery terminals are CLEAN and corrosion free and both battery covers lock into place as they should. It has a few minor scuffs etc from storage and play use, but overall, this is a GREAT Piece!!! This takes 4 "D" batteries and 1 9v battery (not included). This will absolutely make a PERFECT addition to ANY set or colleciton and it displays VERY WELL!!!! If you have any questions at all or would like additional pictures or info, please feel free to ask and we will do our best to help. We ship the SAME or NEXT DAY after receiving payment. All of our listings that will sell or have bids are packaged & ready to ship within the LAST 2 hours of the listing.NOTE: We ONLY ship to PayPal or eBay verified addresses. If you address is not correct in either eBay or PayPal, please update it prior to bidding because we cannot change it & ship to a different address for you.