That was the dealers not so subtle way of saying he doesn't want your trade. I agree with "lookinto", if you really want to sell your coupe and replace it with a roadster, put it on EBAY. My nephew has sold dozens of cars there with no problem.
Check out ebay item # 4609514037, it sold 2 months ago used, for more money than I paid for mine brand new a year ago! Good Luck!