it takes the fast 125mph lines on the ECML for 75% of the journey (at 100mph), then on 100mph branch for the rest of the journey it's also 46 minutes[1], which

it takes the fast 125mph lines on the ECML for 75% of the journey (at 100mph), then on 100mph branch for the rest of the journey it's also 46 minutes[1], which is essentially the same as the peterborough expresses[2] [1] https://www.realtimetrains.co.uk/service/gb-nr:W78063/2022-09-26/detailed https://www.realtimetrains.co.uk/service/gb-nr:W78063/2022-0... [2] https://www.realtimetrains.co.uk/service/gb-nr:L77638/2022-09-26/detailed https://www.realtimetrains.co.uk/service/gb-nr:L77638/2022-0...