Objective: - The parametrized twist beam suspension is a pivotal component in the automotive industry, profoundly influencing the ride comfort and handling characteristics of vehicles. This study presents a novel approach to optimizing twist beam suspension systems by leveraging parametric design principles. By introducing a parameter-driven framework, this research empowers engineers to systematically iterate and fine-tune twist beam designs, ultimately enhancing both ride quality and handling performance. Methodology: - Affordable vehicles are widely equipped with twist-beam suspensions since they are simple to design, take up less space, and are less expensive to manufacture. It is difficult to design an axle made with twist-beam profiles due to the variety of possible configurations, and the suspension arm and axle beam stiffness must be adjusted. To address the challenges of optimizing the twist beam model, this study presents a simplified optimization model using MSC ADAMS. This model enables designers to optimize the Kinematic and Compliance (KNC) parameters and handling characteristics efficiently. Unlike the traditional twist beam model, which requires extensive meshing and manual modifications for even minor changes, the parametric model in ADAMS allows for easy modification and optimization. This approach significantly reduces the time and effort required to achieve a final optimized model. The study validates the parametric model against an existing twist beam model and demonstrates improved KNC, Stability and Ride performance through optimization parameter. Results: - In this work, the simplified beam & bush model has been validated against a twist-beam MNF model and has been considered for DOE studies to improve handling & stability. By using Adams/Car software, multiple configurations. The results reveal substantial improvements in ride comfort and handling dynamics, highlighting the potential for this approach to revolutionize suspension system development. New to the field: - A novel approach to designing the twist beam suspension in Adams involves utilizing minimal inputs. This is achieved by modifying all design parameters at the conceptual level without the necessity of creating any CAD designs. This method facilitates a swift finalization of the twist beam design for designers, requiring only minimal adjustments in the end product Conclusion : -In conclusion, the parametrized twist beam suspension approach offers a promising avenue for automotive engineers to achieve optimal ride and handling characteristics through systematic design iteration. By providing a structured framework for parameter adjustments, this research contributes to the advancement of suspension technology, ultimately leading to safer, more comfortable, and better-performing vehicles Keywords: Optimizing Twist Beam Suspension ,Parametric Design .Multibody dynamics, Handling & Steering performance.