Stuck in the middle of nowhere without another car in sight? Pull out your FreeCharge Weza and start stomping to convert your physical energy into something your car can use—electricity.
Or, if you thought ahead, you could have already charged up the Weza using your home's AC power, solar energy, or wind energy (all not included). If your car's not dead, you can use it as a source for your campsite as well. Not a bad device to have in case your car breaks down, but we'd probably rather go with AAA roadside assistance.