Thomas Ableman from Chiltern Railways explains how they are expecting a lot of business for the new service.
Virgin Trains, who operate on the West Coast Mainline, say that competition is good for customers and it has more frequent, faster services.
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Some showers, although many places will stay dry.
Mainly dry tonight. Showery rain spreading in tomorrow.
Team GB swimmer Adam Peaty, from Uttoxeter in Staffordshire, has broken the world record for the 50m breast stroke.