British manufactured cars have always been used as prime ministerial cars by the prime ministers of the United Kingdom. The cars currently used are armoured, custom built Jaguar XJ Sentinel supercharged 5.0 litre V8 models. The cars used by the prime minister are the long wheelbase models of the Jaguar XJ.Prime ministerial and ministerial limousines are operated and administered by the Government Car Service, an executive agency of the Department for Transport, and stored and maintained at 10 Downing Street. The cars are driven by officers from the Metropolitan Police Royalty & Specialist Protection branch, skilled in protection convoy, anti hijack and evasive driving skills.