Hey

Have you looked at NADA/KBB trade-in/private sale values? Dealerships never give you the full trade-in ammount, but it's a decent gauge of how much you'll get by selling the car yourself.

Also, I've never driven a tC, but when I looked at them I was impressed. Seemed to be a very well put together car for their MSRP.

www.nada.com
www.kbb.com