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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It seems people really do love the spread - and are stocking up on it - after the price row between Marmite supplier Unilever and Tesco.
Dry overnight with clear spells developing.
Mostly dry. Some patchy rain in the south.