As time progresses, you'll need to research new sub-component designs to remain relevant in the automotive industry. The game handles with a system called Design Skills.

The game uses design skills in two ways. First, the system uses them to unlock new sub-component designs. Secondly, it acts as a rating bonus when designing new components or vehicles. Companies with higher design skills will unlock better components faster than the competition, and they'll produce better designs for less money than companies with worse design skills.