Porterbrook's aim in the coming years is to not only continue with investment in new trains and associated equipment for the UK rail industry but to also improve reliability, availability, maintainability and safety characteristics by working closely with the freight operators, train operators and suppliers to identify opportunities Porterbrook's investment to date in the UK rail markets totals to almost £2 billion in new trains and over £200 million on existing fleet refurbishment Porterbrook Leasing Company Limited bought approximately one third of British Rail's rolling stock with leases in place with the newly created passenger train operators