Looks like the "new" option for Chiltern stock has been removed - now for 20-70 existing vehicles.
UK: Chiltern Railways has invited proposals from established rolling stock owners for the lease and maintenance of between 25 and 70 existing vehicles to operate inter-city and regional services on the Chiltern Main Line between London Marylebone and Birmingham. The operator is seeking either...
www.railwaygazette.com
UK:
Chiltern Railways has invited proposals from established rolling stock owners for the lease and maintenance of between 25 and 70 existing vehicles to operate inter-city and regional services on the Chiltern Main Line between London Marylebone and Birmingham.
The operator is seeking either ‘self-powered’ multiple units or locomotive-hauled coaches, which can operate at 160 km/h in fixed formations of five or six passenger vehicles.
The word "tender" is bandied about in this thread, but this is an invitation for rolling stock owners to make fleet proposals to Chiltern prior to them selecting a partner.
The off-lease ex-TPE Mk5 and ex-TfW 175 fleets are noted as broadly fitting the Chiltern spec.
There are 65 Mk5 vehicles (13x5 car), and the class 175 fleet is also 65 vehicles (11x3 car plus 16x2 car), assuming no withdrawals.
Lower noise emissions than the current Chiltern class 68 fleet are required.