This gorgeous, stainless steel and bronze toy car is ... Pull the car backwards while pushing down and the motion of the turning wheels is stored as energy in a coiled spring inside the big ...

Last week we saw the prototype of the engine by itself, and wondered if this had enough power ... spring-driven car which you pull backwards to load the spring. It’s a common feature in toys ...

you can always buy them a fuel cell-powered toy car like the H-ROVER or the H2GO. Should you wish to show them the merits of solar power, there are also quite a number of solar panel-equipped cars ...