The pre-series of a prototype is a handcrafted replica of the validated functional prototype. The pre-series of a prototype is not manufactured using industrial methods; instead, the prototype is reproduced following the same steps and using the same tools used to manufacture prototypes. The price of the pre-series is entirely related to the characteristics of the functional prototype.  The pre-series of prototypes are manufactured using non-industrial means. For this reason, the price of the pre-series should not be taken as a reference or compared with the prices of the final product. The unit price in the pre-series is usually between 5% and 10% of the prototype's price.