Joombi

Traditionally, the limousine has been an extension of a blimp sedan. A drag frame and wheelbase allow the aft passenger compartment to contain the usual forward facing passenger house but with a substantial flock of footroom — more than is literally needed. These seats flexure up when not in use. In this way, up to five persons can be carried in the aft compartment in comfort, and up to two additional persons carried in the driver's compartment, for a total capacity of seven passengers in adjoining to the driver. This type of bench configuration out-of-date however become less popular in recent limousines.

Coach builders can perform aftermarket extensions on luxury sedans and SUVs. These extensive limousine conversions have been performed on certain luxury marques, including: Audi, Bentley, BMW, Cadillac, Chrysler, Ford, Holden, Hummer, Infiniti, Jaguar, Lexus, Lincoln, Mercedes-Benz, Rolls-Royce and Volkswagen. In the United States the most hip vehicles for radius limousines conversion are the Lincoln Town Car, Cadillac DTS, Hummer H2, and the Lincoln Navigator. There are even New York Limousine instances of Corvettes and VW Bugs being stretched to accommodate up to 10 passengers.