This is the horizontal panel under the rear seat area that has the location points and castellated nuts for the front of the rear subframe fixings which often rusts. Fits all saloons and Clubmans but for Clubman estates and vans with wooden load floor but the van with metal load floor and pickup is taller at 21cm(8.25") high- See
MS51VANThis is the true shape as fitted from 1991 and will fit earler cars--if you require a true pre 1990 panel for originality see
MS51Customers have used this panel or the half panels without problems but measure up before cutting out too much metal.