9 7 0 s , ▁increasing ▁economic ▁tur mo il ▁in ▁the ▁UK , ▁decl ining ▁build ▁quality , ▁and ▁increasing ▁strike ▁action ▁throughout ▁British ▁industry ▁( and ▁in ▁stark ▁contrast , ▁the ▁Wirtschaft sw under ▁or ▁economic ▁mi racle ▁of ▁West ▁Germany ▁during ▁the ▁same ▁period ), ▁plus ▁the ▁entry ▁of ▁the ▁UK ▁into ▁the ▁European ▁Econom ic ▁Community ▁in ▁ 1 9 7 3 , ▁made ▁maintain ing ▁two ▁parallel ▁model ▁lines ▁serving ▁similar ▁mark ets ▁increasing ly ▁und es irable . ▁The ▁F E ▁Series ▁Victor , ▁launched ▁in ▁ 1 9 7 2 , ▁would ▁be ▁the ▁last ▁all - B rit ish ▁V aux hall . ▁Following ▁the ▁introduction ▁of ▁the ▁Che v ette ▁and ▁Caval ier , ▁virt ually ▁all ▁future ▁V aux h alls ▁would ▁be ▁light ly ▁rest y led ▁Op els ▁( the ▁exceptions ▁would ▁be ▁based ▁on ▁models ▁from ▁elsewhere ▁in ▁the ▁G M ▁organisation ). ▁However , ▁V aux hall ▁retained ▁its ▁two ▁British ▁fact ories ▁at ▁L ut on ▁and ▁Ell es m ere ▁Port , ▁with ▁most ▁cars ▁we aring ▁the ▁V aux hall ▁bad ge ▁still ▁being ▁built ▁in ▁the ▁UK . ▁ ▁The ▁introduction ▁of ▁the ▁Op el - based ▁V aux h alls ▁marked ▁a ▁significant ▁improvement ▁in ▁both ▁the ▁design ▁and ▁build ▁quality ▁of ▁V aux hall ▁cars , ▁which ▁were ▁now ▁considered ▁strong ▁riv als ▁to ▁their ▁Ford ▁compet itors . ▁By ▁the ▁end ▁of ▁the ▁ 1 9 7 0 s , ▁V aux