Complex sentence: The car was almost unique among British volume-produced saloons in featuring an overhead camshaft engine though both Wolseley's postwar cars and the Morris Six MS did also use Wolseley's normal single overhead camshafts.
Split into simpler sentences: The car was almost unique among British volume-produced saloons in featuring an overhead camshaft engine. Both Wolseley's postwar cars and the Morris Six MS also used Wolseley's normal single overhead camshafts.