A weight and method of providing mass for a model racing car is the subject of the present application. The weight is comprised of two portions. The first portion simulates the undercarriage of an automobile and the second portion comprises multiple components joined by lines of weakness. The multiple components of the second portion can be broken away to vary the total mass of the weight. The method comprises forming a weight having a first component of the configuration of an automobile undercarriage and a second component comprised of a plurality of sections joined by lines of weakness and the step of attaching the weight to the bottom of a model racing car. Portions of one of the components may be removed to vary the total mass.