Comparing the cost of roads and related infrastructure for the car industry with ultralight helicopters is complex, as they serve fundamentally different purposes and involve distinct cost structures. However, it's generally accepted that the total societal cost of roads and the car industry far outweighs that of ultralight helicopters. Here's a breakdown of why: Roads and Car Industry Costs: * Massive Infrastructure Investment: Roads, bridges, tunnels, traffic lights, signage, and public transportation infrastructure (buses, trains, etc.) require enormous initial capital investment for design, construction, and land acquisition. * In 2021, state and local governments in the US alone spent $206 billion on highways and roads, with 56% for capital spending (construction) and 44% for operational costs. * The U.S. faces a $684 billion funding gap for roadways over the next 10 years. * Ongoing Maintenance and Repair: Roads constantly degrade due to weath...