Answer: hardtops

AnswerCrossword Clue
HARDTOPSCars without center posts
HARDTOPSSome Corvettes had detachable ones
HARDTOPSCertain cars
HARDTOPSConvertible alternatives
HARDTOPSFeatures of some automobiles.
HARDTOPSCars.
HARDTOPSAlternatives to convertibles
hardtopsA motor vehicle with a rigid roof that in some cases is detachable
hardtopsA roof of this type
hardtopsHARDTOP, a rigid roof on a motor car