are you looking for financial advice?

03 wrx = $25,343 with destination. add tax, reg, etc = ~28000 out the door for a stock no option WRX.

28000 -2000(downpayment) - value of civic = X

so what is the value of the civic? i'm not sure but lets say $5000.

so you still have 21000 you have to get financed on. 21000 over 5 years at 4% is approximately 480/month.