Historically four-door saloon cars have been highly popular as hackney carriages, but with disability regulations growing in strength and some councils offering free licensing for disabled-friendly vehicles, many operators are now opting for wheelchair-adapted taxis such as the LEVC TX of London Electric Vehicle Company (LEVC). Other models of specialist taxis include the Peugeot E7 and rivals from Fiat, Ford, Volkswagen, and Mercedes-Benz. These vehicles normally allow six or seven passengers, although some models can accommodate eight. Some of these minibus taxis include a front passenger seat next to the driver, while others reserve this space solely for luggage.