Four-door pillared hardtop

Once the "true" four-door hardtop began to fade away, manufacturers needed another name for their luxury four-doors. Many were styled to look almost like the former pillarless models, with thin or unobtrusive pillars between the doors. Some, in fact, were called "thin-pillar hardtops". The distinction between certain pillared hardtops and ordinary (presumably humdrum) sedans occasionally grew hazy.