You can see what car modifications of 庞蒂克汽车 Grand Am [1978-1980] use 5x120.65 bolt pattern below:
庞蒂克汽车 Grand Am has the following bolt patterns: 5x100, 5x115 和 5x120.65. The table below shows how the bolt pattern (PCD) of the 庞蒂克汽车 Grand Am has changed over the life cycle, depending on the vehicle generation: