M6 Toll operator Midland Expressway Limited has confirmed that the road has made a £41 million loss in a year.
Opened in 2003, the Toll road, links junction 11a of the M6 near Cannock to Junction 3a at Coleshill in Warwickshire.
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Ahead of the conference, calls are growing for Midlands regions to have their own devolved powers to match those on offer to Scotland.
After a cool start, Sunday looks set to be a dry and bright day, with sunny spells.
Mainly dry with clear spells but possibly one or two light showers near coasts overnight, remaining largely dry on Sunday.