So much wonder in such a tiny thing: clockwork, little rubber tyres, a flywheel-driven motor, Bauhaus chassis, porthole-style wheels. This is one of a series of about a dozen clockwork toys designed by Brazilian toymaker Chico Bicalho and made by Kikkerland. The company donates 10% of sales proceeds to campaigns to protect the rainforests. the toys are all heavily built and each completely idiosyncratic in behavior - some spastic gymnasts, others spark-flinging whirligigs. The Zecar - once you get the flywheel spinning, rolls slowly, relentlessly over just about anything less than half its own height thanks to massively high gear ratio, torque and traction.