replaced with newly fabricated versions that included gangways and Voith automatic couplers of the same types used on Class 444 and 450 units. Four of the selected driving vehicles had been built with luggage compartmentsthese were removed and their roller-shutter external doors were replaced with power-operated plug doors the same as used on the other vehicles. Additional modifications included re-gearing the traction motors to reduce the train's maximum speed from to , both to reduce the likelihood of overheating when making frequent stops and starts, and because the higher speed was unnecessary on suburban services in any case. New Train Management System (TMS) software was developed to be compatible across the entire Class 458/5 fleet, simplifying maintenance and improving reliability. An Automatic Selective Door Opening (ASDO) system was installed for use at a small number of stations where it was impractical to lengthen platforms. The vehicle interiors were refurbished and reconfigured to provide more standing room for passengers, mainly by changing from 5- to 4-abreast seating and thus allowing a wider aisle. The units were also repainted into SWT's blue livery, matching the Class 450 fleet. SWT expected to receive the first two converted Class 460 units in May 2013—in time for them to enter service the following November—but due to delays in production the initial delivery didn't take place until October. Following testing and staff training, entry into passenger service was achieved in March 2014. Once the first four fully-converted units had been delivered and accepted for service, SWT were able to start sending original Class 458/0 units for rebuilding. These units received the same modifications as the Class 460 conversions, leaving SWT and Porterbrook with a single mechanically homogenous Class 458/5 fleet. The last unmodified original units were withdrawn from service for rebuilding in November 2015, and returned to SWT after completion on 30 March 2016. At the conclusion of the conversion project four Class 460 vehicles—all of them driving cars with luggage compartments—were superfluous; these were stripped for spare parts and later scrapped. Future The South Western franchise was transferred from South West Trains to South Western Railway (a FirstGroup/MTR joint venture) in August 2017. Prior to commencing operations, SWR had taken advantage of low finance costs to order from Bombardier Transportation a new fleet of 750 vehicles—now designated —that would replace Classes , , 458, and on South Western suburban services from late 2019 onwards. However,