This car model consists of snap-fit parts that easily slot together. You only need to use glue in two specific areas: first, to attach the plane part to the seat, and finally, to secure the edges of the plane to a small area on the body. Technically, gluing is optional, but it is highly recommended to make the car more stable and rigid. The scale is entirely up to you—you can easily scale it to 1:24, 1:18, 1:32, 1:48, or 1:12 depending on your preference.