This paper presents a Quadruple Bottom Line Analysis of Sustainable Design Directions for Ecofitting, a sustainable solution for the large UK fleet of internal combustion engine cars that will soon be rendered non-compliant with fast approaching initiatives for Ultra Low Emission Vehicles. Ecofitting circular economy strategy goes beyond just electrification, opening an opportunity for new approaches to automotive design, and to cater for generational shifts in desirability. The need to understand subjective aspects related to aesthetic experience, aesthetic properties, values, worldviews, and tastes, initiated the development of an extended view on sustainability include these issues. The paper presents the analysis made with an expanded and revised Sustainable Design-Orienting tool. The analysis pointed out that Ecofitting can have a significant impact in the automotive industry. At the same time, this study reveals the importance of the quadruple bottom line to develop tangible and intangible aspects of design.