can i trade in a car i just bought with 5k mileage on it?

(My Original Blog Post: http://www.latesttrendsguide.com/?p=1283)

i spent over 30k on this new car, i regret for spending so much now.. can i trade in for something cheaper? i already down 10k for that purchase.. i checked kbb for my car's trade in value's around 29k... i dunno if it's a good idea to trade in.. any advise?

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