I'm playing with Industrial Revolution 3 and Rampant Arsenal (companion mod to Rampant). The latter adds an "Advanced Car" but in my game it only takes the basic burner-tier fuels. I intended on making a personal compatibility patch mod for myself, but I've never written mods for Factorio and the wiki tutorials aren't specific to my situation.
I see that in Rampant Arsenal, advCar's energySource's fuel_category is "chemical" and in IR3, the default_vehicle_fuel_categories are "steam-cell", "canister", "barrel", "battery".
If it's relatively painless for you to add these two to your compatibility mod, I would vastly appreciate it. I'd also just be good with being pointed to resources to make a mod similar to yours since I've inspected yours as well—my barrier is that I don't yet know if I've identified everything necessary and can just change some strings, or if there's a lot of little bits I don't realize also need to be changed and I'll be banging my head against a wall for too many hours.