This paper presents the design directions for Ecofitting, a sustainable solution for the large UK fleet of internal combustion engine cars that will soon be rendered noncompliant 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. State-of-the-art, taxonomic and trend mapping research have identified opportunities for retrofitting leading to four proposed design directions inspired and influenced by sustainable practices across other industries, that directly involve the consumer, and provide an alternative approach to the longstanding aesthetic of perfection historically seen in vehicle design.