What better time to offer our list of favorite underrated destinations in Mexico? Some are close enough to be day trips from large, popular tourist destinations (but merit consideration as destinations unto themselves); others are more of a challenge. We've included destinations in areas currently besieged by drugtrafficking violence because we trust they will one day be safe again. The stone wall built in the late 17th century to keep the buccaneers out, a good portion of which is still standing, encloses the largest and most perfectly preserved enclave of postcardperfect, pastelcolored houses in Mexico.It may be the revival of the "Great American Car" and the rebuilding of Detroit as a great American city. For this to happen, in my opinion the Volt can't be dependent on GM in any way. I want to see one in every color on a new exclusive and futuristic Volt lot and a smiling salesman that is eager to take my money and to "even throw in some floor mats" if I buy