The prince will arrive in May for treatment at a Swiss health resort, and stay at his 17,000-square-meter (183,000 sq. ft.) white marble palace on the left bank of Lake Geneva.
The rental of the limousines, which are being driven in from Germany, has sparked criticism from local luxury car rental companies. The cars and drivers have been hired from a Munich company.
Louis Roulet, the director of Golden Limousine Services in Switzerland, told Swiss media that according to national laws, chauffeurs driving cars with foreign license plates are prohibited from receiving money from clients within the country.
However, Jacques Folly, the head of the department of trade in the canton of Geneva, said the arrangement had been made on the federal level to allow the Saudi royal family the use of foreign cars and drivers, as they will also be traveling to Paris and the French Alps.