Gary Coleman may have been a great actor as a child -- but he sure grew up to be one lousy used car salesman.
In another clip from a pilot Gary shot in 2008 -- which never aired -- Gary's life coach forced him to try his hand at selling cars ... which worked out about as well as that job at the pet store.
We have no idea why this show didn't get picked up.
Gary Coleman -- Used Car Salesman
6/13/2010 9:00 AM PDT BY TMZ STAFF
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