The Carrera Banshee name has been used on several different bikes over the years. The first Banshee was an aluminium hardtail, which I think was followed by the version you have. At a guess this was early 2000s.
I'm pretty certain there were two versions of this design with differing rear suspension layouts, yours appears to be the 'faux-bar' layout, the other was a full four bar linkage with a chainstay pivot, aka Horst Link.
Later bikes had a conventional front triangle, with a short rocker and then from around 2007 they went to 6 inch travel and all full four bar linkages - Also sold as the updated 'Banshee X' and a sole 'Banshee XXX' models - these were really aimed as long travel freeride/dh bikes.
The latest Banshees are pitched more as XC bikes... would probably benefit a whole thread of photos.