Inspired by the classic go-kart made as a child, the Play Soapbox Cart by Normann Copenhagen is breed apart from any cart most of us cobbled together in our youth.
The Soapbox cart is part of the Play series, which also includes furniture for kids, and was designed to stimulate a child's imagination and be full of fun. The cart is handmade by a local carpenter in Denmark, and is made of varnished beech.
Quality costs of course, and at £2150 you may be tempted to attempt your own version first. The Play cart if available online from Bodie and Fou.