My boyfriend is in the car business and the best thing to do with negative equity is to roll it into a LEASE. I had an Xterra that I was upside down by about $5000 that I rolled into a 39 month lease. When you roll into a lease, your lease payment is a bit higher than a normal lease would be, but after the lease term the negative equity is gone. The one important thing to note that if you do this, you CAN NOT buy the car at the end of the lease, otherwise you'll still be upside down. Look around on the internet, you'll see it's a really common thing to do. Also, most leases included GAP insurance.