Based on the concept 100EX -- designed to celebrate 100 years of Rolls-Royce's existence -- the stately Drophead Coupé can be had for $412,000 to 100 providential connoisseurs of British heritage this year. And as they say in England, the Drophead Coupé is "The Business." And after evaluating the massive convertible recently in San Diego, we can certainly attest to the statement