方向盘做成内外两层的是有什么含义/好处么？

试驾过不少车，这种两层方向盘总觉得很奇怪


[img]https://img.nga.178.com/attachments/mon_202504/22/-7da9Q94rt-bc7kK1tT1kShs-12j.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202504/22/-7da9Q94rt-52hwK1mT1kShs-12j.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202504/22/-7da9Q94rt-jfsbK1jT1kShs-12j.jpg.medium.jpg[/img]

正面看过去也能看到分层，摸起来也不是一个整体感觉

印象中大部分车，是下面这样(不是内圈和外圈分隔开)

随便查了2个图


[img]https://img.nga.178.com/attachments/mon_202504/22/-7da9Q94rt-ehjsK1oT1kShs-12j.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202504/22/-7da9Q94rt-7yduK1kT1kShs-12j.jpg.medium.jpg[/img]