Internal combustion engines inherently demand startup assistance to perform its autonomous functioning. Nevertheless, the common solution over more than one century has been the electric starter motor, for both Otto and diesel cycles. The dynamic coupling system defined herein as the mechanical connection between the internal combustion engine and the starter motor has not evolved considerably since the intermittent pinion-ring gear interface has been adopted. This paper reviews the conceptual design behind the starting systems developed so far, focusing on their functional analysis, and proposes an innovative concept. Preliminary study on dynamic simulation using lumped parameters model, implemented in AMESim, is also discussed as potential aid for the proposed design. Based on decision matrix method, it is possible to evaluate the proposed design against state-of-the-art and promising alternatives to find a real cost-effective alternative to the existing concepts to couple the electric motor and the internal combustion engine. The patented dynamic coupling system proposed herein demonstrates potential to evolve as a cost-effective solution to implement start-stop systems worldwide, contributing to reduction of pollution caused by automotive vehicle emissions.