 Factors such as the variable extent of dependence on brought-in sub-assemblies made the comparison imperfect, but the continuing lack of profitability resulting from continuing failure to invest intelligently in up to date production processes was all too real.This was a part of the background to BL's famously awful industrial relations during the 1970s.Characteristic BL introductions included the Morris Marina and Austin Allegro inspired respectively by the more thoughtfully developed and charismatic Ford Cortina and Citroën GS competitor products.