I'm no expert, but based on what I've seen in cars na na-Ondoy, as well as on the owners' account - mataas ang chance na magkaroon ng rust under the carpets and sa mga wiring mismo. Though sa ngayon any rust problems would have surfaced already, or it's been repaired na. Kudos for the owner's honesty though. If you're really prepared to buy it, bargain for a much lower price. My neighbour sold his Ondoyed-mini for much less than that.