The growth of electrical vehicles market has increased the demand for permanent magnet direct current motors (PMDC). The design of PMDC motors involves a great amount of time, therefore assertive ways to design it can save time and money. This work demonstrates how to make use of electromagnet flux simulation in order to forecast direct current motors performance. When the flux simulation was compared to the results of tests applied on a prototype it was shown that the simulation is able to forecast prototype performance with an error of 6%. Then it is demonstrated that simulations can be of good use for speed up design process, ensuring agility to design process that electrical vehicles market requires.