Cars Bikes This 3D Printed High-Performance Racecar Is Powered By Rubber Bands The EngineerNovember 26, 2019November 26, 20190 Advertisement Almost all of us played with cars powered with a rubber band when we were young. We bet, none of them was as cool as Cirin. Cirin is a mid-1950s Formula 1 car based mini racecar, featuring state-of-the-art construction … Read More