I'm not in the US. Over here, the idea of a car worth driving costing only 100 euros is ludicrous, and was so even before the local scrappage schemes took plenty of 10-years-or-older cars off the road.

(100 euro cars used to be found; people who don't want to admit their car's worth nothing. They were often bought by teenagers, driven psychotically for a night, and burnt out. These days I assume they're being driven into the ground instead.)