I'm in the same boat mate. I'm flogging mine off for $6k to a mate, which I'm devastated with, but hey, real estate is the wiser decision so you kind of have to bite the bullet at some point...
If anything, keep it, if you've got the space, don't drive it and let the rego lapse, and deal with it later on when yu've bought your house and are in a position to get back into cars.