The first rail kart was just the beginning. This time, I redesigned the frame, improved stability, and pushed it to limits I didn’t dare test before. Abandoned tracks? They’re no match for this beast.

Hoverboards have been an indispensable material for hackers building their own vehicles in the last few years. [Mahmut Demir] shows how he’s built a hoverboard-powered go-kart for his son. Unable to ...