https://youtu.be/58XGpmLA-Cs Most people slow down at 93—my Great Grandpa decided to build a flamethrowing motorcycle and a propeller-driven trike instead. We’re stepping inside the legendary "R&D Garage" in the heart of West Virginia to tour a collection that defies logic. From 100-year-old racing legends he first saw as a child to propane-powered 212cc custom builds and high-voltage Tesla machines that look like they belong in a sci-fi movie, this is a masterclass in "Mad S