Good question. If you refinanced your vehicle and as security for the loan your home was used as security for the car's purchase and you ended up losing your home in a foreclosure, the lien for the car's loan was wiped out assuming the lien was a junior lien to the one that foreclosed upon the home.The result is that there is no security left for the loan, but the lender for the car can sue on the promissory note for the loan if the car loan is not being kept current. If the car is not paid off by the time the loan matures, then the full remaining amount is due and payable.