您可以 groupby ，汇总到列表中，返回 rec.array 与 to_records 并根据结果构建字典：

You can groupby, aggregate to lists, return a rec.array with to_records and construct a dictionary from the result:

dict(df.groupby('Model').agg(list).to_records())
# {'Ford': ['F-150', 'Escape', 'Mustang'], 'Jeep': ['Grand Cherokee', 'Wrangler']}