A small Chinese game development team asked me to design racing vehicles for their mobile kart racing game. The main criteria was that each vehicle must be single-seater and fit every game character that are already created. Given the task, I went for a little research on various land vehicles. After gathering enough visual reference for concept sketching, I began to put my ideas on paper. The game development team picked the most appropriate designs. Then followed the refinement of the final designs based on my concepts and client specifications. It was a lot of fun at every stage of the project which has taught me a valuable lesson in technical design. The project includes all supporting visual material for the 3D modeling stage as well.