In the development and finalization stages of a new tractor, it is extremely important to take market requirements into account. These determine the main characteristics of the model: engine power, tractor dimensions, weight, and power train type.In describing the development of the Fiat Model 1300 tractor, the author first explores the requirements of European farmers as opposed to American farmers. Then, calculations used in the determination of the power and weight of the tractor are presented. Next, the advantages of 4-wheel and 2-wheel drive are compared. The choice of engine and transmission for the Model 1300 tractor is explained, and rear tire specifications discussed.Other items such as rockshaft, three-point linkage, and towing devices are also considered, and a detailed description is given of the driver's compartment.