It's called "getting upside down" when expeditures exceed value. Mercedes people do it all the time, as do Porsche and British sports car owners. Why would a smart guy like Stephan Wilkinson, former Car & Driver editor, spend two years and $70K to refurbish a Porsche 911 that will never be worth more than $20K . . . read "The Gold-Plated Porsche" to find out.