Has anyone ever thought of modifying the Spacedock format for planetary based vehicles like cars, planes, and boats?
Some parts would seem easy. I've seen one source that gave planetary vehicles sized codes similar to those used for ships, and since SU's are conceptual markers, it would be easy to keep those. It seem to me that the hard work would deciding what types of modifications would be available how may SU's they require.
This is project I would like to see done, and I would even help out where I can, but I don't really have the game design background or the time to see a release of the product in a reasonable amount of time.
I have created a few listed in my compiled collections and twenith century automobiles and the 4x4 from Nemesis. Typically they are easily destroyed with a single energy beam weapon shot.
Cool! I like that. I am creating an alternative universe campaign, and I have envisioned a Prime Directive with more exceptions to allow more contact with primitive races, and I have also been wanting to expand planetary defense forces with tanks, aircraft, aquatic vehicles, and even walkers like from Star Wars and mecha like from Japanese anime.
Good luck on the your work. Personally I have pushed the envelope far as I like for now. I am working on some Pirate ships and a Complete Buck Rogers StarFleet with thr Draconian and Earth Defence Drirectarate ships for a couple of adventures.
I would be interested in seeing the final results of your work.