1963 Pontiac Catalina 1963年龐迪克Catalina

????無支柱式硬頂或硬頂敞篷車在設計上省去了車前門后的車頂支撐件,，因此看起來像一輛車頂抬升起來的敞篷車,。部分類似龐迪克（Pontiac）的車型則將敞篷理念做了更進一步的發(fā)揮,，將車頂設計得宛如一個抬升起來的帆布車頂,。這種設計所潛藏的安全性問題以及在新型單片式車身生產線上遭遇的生產難題導致無支柱式硬頂車型在1978年宣告壽終正寢,。

1963 Pontiac Catalina

????Pillarless hardtops or hardtop convertibles, which omitted the roof support behind the front door, were designed to look like a convertible with the top raised. Some, like this Pontiac, took the convertible look even further, shaping the roof to resemble a raised canvas top. Safety concerns and manufacturing difficulties with new unibody assembly spelled the end of the pillarless hardtop style by 1978.