(August 1, 2011) Among the $7.6 million in sales that RM totaled in its auction over the weekend at St. John’s in Plymouth, Mich., all eyes turned to the most visible of the lots — the Plexiglas-bodied Pontiac built for the New York World’s Fair of 1939-1940, which sold for $308,000, including the 10 percent buyer’s premium, and Al Jolson's 1932 Packard Twin Six custom convertible sedan, which sold for $1.1 million.