A little wooden truck: OK this one isn't so much alternative energy but alternative transportation. Purdue University says it has developed what it calls a BUV or Basic Utility Vehicle made up of pine. The design can easily be adapted to African hardwoods like mahogany, its handlers say. It could be used for many purposes, such as to haul crops, water, building materials, students or the infirm, in areas where no other transportation exists. The BUV, which is about the size of a Toyota pickup can be built with the most basic tools and skills. It is powered by a 10 horsepower, Chinese-made diesel engine that lets it hit about 20 mph. The all-terrain vehicle can travel on small roads or cross-country and can carry at least eight passengers and up to 1,200 pounds, Purdue stated.