The Kia EV3, or at least the concept version of the incoming electric small car, has interiors made of mushrooms, hemp, corn, and sugarcane. These grown materials are part of what the brand calls its "10 must-have sustainable items" in its cabin construction, which also includes sawdust, 'bio-polyurethane' leather, floor carpet made from 100 per cent recycled PET bottles, and the option of materials made from recycled fishing nets.