汽车内饰改装是一项技术含量较高的工作，需要一定的学习和实践。学习汽车内饰改装需要的花费并不高，但是实际的翻新和升级价格则取决于所需要的材料和工具、要改装的部分和品牌等多种因素。

学习汽车内饰改装所需要的基本工具包括一些基本的手工工具和电动工具，例如螺丝刀、钳子、扳手、电钻、磨光机等等。这些工具的价格相对较低，一般不会超过2000元。除此之外，学习也需要一些教程和资料来帮助自己掌握基本的技能和知识，例如一些视频、文章、书籍、论坛等等，这些资料可以免费获取或者花费一些低廉的费用。

如果要给车辆翻新和升级，则需要根据不同的部分和品牌来选择材料和工具。例如，要更换座椅或者内饰表面材料，品牌越高级材料就越贵。使用真皮会比其他材质更昂贵，而使用顶级品牌的真皮则会更加昂贵。同样的，使用最高级别的细节处理和定制化零配件，也会增加总费用。

价格的另一个因素是劳动力。 If the owner wants to upgrade his or her car, then it is essential to hire a professional team to help do the job. The team usually includes a skilled technician who is able to help modify the car interiors and a team that has experience with this task. The labor cost is usually competitive compared to the cost of materials, but it depends on the scope of the project. Most automotive interior companies will provide quotes for their services that outline all the costs and labor involved.

In conclusion, learning automotive interior design can be inexpensive as long as you have basic tools and materials. However, the cost of upgrading a car greatly depends on the materials and labor involved. A top-of-the-line car interior design can easily cost tens of thousands of dollars by the time all materials, services, and labor have been accounted for.