What is M6 motorway?
{{infobox road |country=GBR |type=M |route=6 |length_mi=232.2 |direction_a=South |terminus_a=[[Catthorpe]] <br><small>{{coord|52.400442|N|1.175215|W|dim:4000_region:GB|display=inline|name=M6, southern terminus}}</small> |counties=[[Leicestershire]], [[Warwickshire]], [[West Midlands (county)|West Midlands]], [[Staffordshire]], [[Cheshire]], [[Merseyside]], [[Greater Manchester]], [[Lancashire]], [[Cumbria]] |destinations=[[Rugby, Warwickshire|Rugby]]<br>[[Coventry]]<br>[[Birmingham]]<br>[[Walsall]]<br>[[Wolverhampton]]<br>[[Cannock]]<br>[[Stafford]]<br>[[Stoke-on-Trent]]<br>[[Newcastle-under-Lyme]]<br>[[Crewe, Cheshire|Crewe]]<br>[[Warrington]]<br>[[Wigan]]<br>[[Preston, Lancashire|Preston]]<br>[[Lancaster, Lancashire|Lancaster]]<br>[[Kendal]]<br>[[Penrith, Cumbria|Penrith]]<br>[[Carlisle, Cumbria|Carlisle]] |direction_b=North |terminus_b=[[Gretna, Scotland|Gretna]] <br><small>{{coord|54.996672|N|3.055336|W|dim:4000_region:GB|display=inline|name=M6, northern terminus}}</small> |established=1958 |history=Opened: 1958<br>Completed: 2008 |junction=[[File:UK-Motorway-M1.svg|1000x20px]]<br/>[[M1 motorway]]<br/>[[File:Junction 2.svg|1000x20px]] [[File:UK-Motorway-M69.svg|1000x20px]]<br/>J2 → [[M69 motorway]]<br/>[[File:Junction 3a.svg|1000x20px]] [[File:UK-Motorway-M6 Toll.svg|1000x20px]]<br/>J3a → [[M6 Toll]]<br/>[[File:Junction 4.svg|1000x20px]] [[File:UK-Motorway-M42.svg|1000x20px]]<br/>J4 → [[M42 motorway]]<br/>[[File:Junction 4a.svg|1000x20px]] [[File:UK-Motorway-M42.svg|1000x20px]]<br/>J4a → [[M42 motorway]]<br/>[[File:Junction 6.svg|1000x20px]] [[File:UK-Motorway-A38 (M).svg|1000x20px]]<br/>J6 → [[A38(M) motorway]]<br/>[[File:Junction 8.svg|1000x20px]] [[File:UK-Motorway-M5.svg|1000x20px]]<br/>J8 → [[M5 motorway]]<br/>[[File:Junction 10a.svg|1000x20px]] [[File:UK-Motorway-M54.svg|1000x20px]]<br/>J10a → [[M54 motorway]]<br/>[[File:Junction 11a.svg|1000x20px]] [[File:UK-Motorway-M6 Toll.svg|1000x20px]]<br/>J11a → [[M6 Toll]]<br/>[[File:Junction 20.svg|1000x20px]] [[File:UK-Motorway-M56.svg|1000x20px]]<br/>J20 → [[