I've been following Craig Vetter's motorcycle fuel economy projects for a couple years, and just noticed that he posted impressive new results. His goal is to create a vehicle that can safely and comfortably carry four bags of groceries on the highway on a windy day, and still get over 100 miles per gallon. In addition to his own project, he also hosts a running challenge for others to achieve this goal, and has occasional organized rides to prove results. The latest Vetter Fuel Economy Challenge was at the American Motorcyclist Association Vintage Days a few weeks ago. Five motorcycles and one car got over 100mpg, though not all could carry the groceries. The NY Times posted a brief story, and Vetter posted a detailed writeup write-up.