if you wanna get rid of ur celica because its flashy, then you making everything worst. not only scion is new, noone really seen it, heard about it, and everyone will be amazed of how it looks and confuse it with a bmw or another german car. ull grab more attention like that cz its also a rarer car. if you worried about the exhaust noise, then change ur exhaust and put a stock in. get ur car back to stock. if you are worried about driving fast, ur gonna drive the tC fast too, that you have control. who said you cant drive a celica slow? go 60mph and put it on 6th and ull roll like a butter.
btw 10k is a fair trade in. its not good but i mean trader in usually worst rip off, but you can sell the car by urself for 12 easily if ur car is in good conditiion