The article also says that you can get a huge 8 bedroom mansion with two levels and a 3 car garage for $14,000. A similar house in a "good neighborhood" would cost millions of dollars. Those extra bedrooms can accommodate bodyguards.
Probably because there is greater value in a used car than in what’s for sale there, before it returns to farmland.
There are many cheap houses for sale in Detroit currently. Some of the best deals can be found through online real estate auction websites (like http://realtybargain.net/page/cheap-houses-for-sale-in-detroit.html ), which offer auctions with $1 starting bids.