InfoArc class systems

Various classification systems for Hot Wheels

1. Color

2. Shape

a. Sharp/smooth edges

b. concave/convex parts

3. Size

a. Big/small

b. short/tall/narrow

4. Series 

a. X-Ray series

b. Gameover series

c. Mixed signals series

d. Sugar rush series

5. material (metal/plastic/rubber)

6. Wheel type

a. 3 or 5 holes

7. Date

8. Price now (in box)

9. Popularity

10. Real custom or concept