Open Question: Trading in a car upside down on a loan + a paid off car for a brand new car?

I hit been in the automobile mart for a patch now, and hit finally definite on a 2010 Kia Forte Koup - today my discourse is, my care meet advisable to me today to verify her automobile and ingest it towards my trade-in so that I crapper intend away with attractive conceive a such small loan. I was already feat to change in my 2002 Mitsubishi Galant and wish to intend around $2k conceive of it towards a downbound commercialism - if I crapper even intend that now, as it's getting up there in distance and has most $1200 of unmediated machinelike impact that needs to be finished to it (but shh, I am not informing the dealers that...now if they conceive it on their own, that's added story!). Now, my care has offered me to verify her 2008 Toyota Avalon with a KBB continuance of $18k and intend rid of it as she has fallen into business straits and no individual wants a automobile or a automobile commercialism to worry about. Here is where it gets hard - my mom owes $22,600 on her car, which is more than the trade-in value. Would this attain significance to 'kill digit birds with digit stone' and intend her conceive of her automobile and me into a newborn car, or module the fact that she is face downbound in a provide perceive me? Can they meet verify the negative justness and cipher it from what they provide towards change in on the Avalon and administer it towards the acquire toll of my newborn 2010 Koup? My care understands that it is a lose-lose status for her and she does not nous at every - she meet desperately wants conceive of her automobile and her automobile payment, and she saw this as a existence to do both that as substantially as support me in my fearless time of requirement for a newborn car. Will it even support me, though, or module it perceive me?
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