Time Machine Laboratories was a small, U.S.-based builder-plan and documentation project for a homebuilt, street-legal three-wheeled vehicle (“Time Machine”) described as “post-retro transportation,” authored by Steve Spudic of Jacksonville, Florida. The project was presented as a do-it-yourself design that combined the rear “business end” of a motorcycle (engine, transmission, clutch, driveshaft, shocks, and brakes) with a Volkswagen-based front end for steering and front suspension, plus a fabricated seating platform and a simple, weather-shedding body, aimed at hobbyist builders with welding skills and common shop tools. The design was described as evolving through multiple iterations influenced by earlier “Tri-Magnum” plans, with later “series” builds using touring motorcycles: a Series 2 based on a Honda Goldwing (framed as easier to build but involving four carburetors) and a Series 3 based on a BMW K100 (framed as faster but more complex due to fuel injection and related fuel-system plumbing). Spudic reported using successive builds on multi-thousand-mile road trips, cited weights around 800 pounds, and claimed fuel economy of just over 40 mpg on the latest model, while noting practical details such as removable pin-retained doors and the lack of car-like features such as a heater or windshield wipers. A build manual was offered for sale, described as more than 220 pages with over 200 photos plus diagrams and schematics covering topics including alignment, cooling, steering, braking, hydraulics, suspension, fuel, body covering, electronics, and instrumentation.