A taxpayer is trading in an automobile used solely for business purposes for another automobile to be used in his business. The automobile originally cost $35,000 and he has taken $18,000 in depreciation. The old automobile is currently worth $20,000 and the new automobile the taxpayer wants in exchange is only worth $16,500. The other party agrees to give the taxpayer a trailer worth $3,500 in addition to the new auto. What is the taxpayer's gain or loss realized and recognized on the transaction and what is his basis in the new automobile received.