The M6 is part of the unsigned E-road E24 from the M1 to the M6 Toll near Birmingham . The E5 joins the M6 Toll from the M42 and then uses the M6 to its north end at Carlisle . The section from the M1 to the M6 Toll split near Birmingham forms part of the unsigned E-road and the section from the M6 Toll and the M42 forms part of .