Porterbrook is spending close to £1 million modifying a Pacer train relating to PRM-TSI (Passengers of Reduced Mobility - Technical Specification for Interoperability) compliance.

Paul Francis, managing director of the rolling stock leasing company, told Transport Select Committee MPS on October 27: “We are doing a Pacer vehicle in Derby, with RVEL .

“We are going to put £800,000 into a Pacer vehicle. Notwithstanding everybody’s dissatisfaction, we want to show stakeholders - whether they are people from Northern, people from DFT or politicians, whoever wants to come and see it - what you can genuinely do with that Pacer vehicle to modify it.

“That will form the backstop if the surplus of diesel rolling stock does not materialise and you have to continue to operate Pacer vehicles. We have taken that decision quite independently. We have just decided to invest that money.”