Thinking of a Legend of Korra style game, but tha would need rules for cars-- are there any pathfinder products out there that give rules support for 20th century style cars and such?
I have not used these rules, but there is The Modern Path: Heroes of the Modern World 2.0 (PFRPG) which have modern vehicles in it. It has a table of modern vehicles with things like Cost, AC, Hardness, Hit Points, Base Save, Max Speed, CMB/CMD, etc. Then for actual combat it refers you to the Ultimate Combat section on vehicle combat. Also available here: