Rolls-Royce CEO, Tom Purves announced new details on the firm's forthcoming entry-level 'baby' sedan that was previewed in Geneva in early March as the near-production 200EX concept, at a press conference in New York where the car is currently being shown to potential customers on the first leg of a world tour. Codenamed PR4, the four-door luxury sedan will be powered by a brand new 6.6-liter