If you really want $18,000+ for your car I would definitely say no trade. You won't get that much for an 00 celica with that many kms. I sold mine for 17,300 with approx. 45,000kms on the motor and 115,000kms on the car. My car was in fatastic shape and came with a decent amount of mods and a pretty good stereo. I had been asking around 18.5k the year before and there was zero interest. The market doesn't seem to be very good for seventh gen. celicas around here - for some reason people just don't like them I guess.
But I also have no idea what the demand would be for your car either. I would say you could get between 16 and 17k for the celica without any problems.
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