Is there any command design for scalable market products?

I searched a lot about any command way for creating scalable design UML for products in the market issues but I didn't fond anyway for making my project scalable in the future as easy I can. I have a lot of type of products same "Car, Motor, Bicycle,..." each car has a lot of sublist of types, each type has special attribute so I need to put each one in class but in future if I need to add any item I need to add class to my code that will be so hard way and complex special if I have a lot of types of products. is there any way to make my design more flexible.(ANY EXAMPLE DESIGN PATTERN OR ARTICLE). Note: my project that I create will be the android app.