yes i am dead sure and you got proof of it above my this post, get underneath all three cars of yours and locate drain plug, i only doubt that new city will not have it as she got a flexible fuel tank but other two should have it, and if corolla doesnt have it, its just ............. rehn diyo.
petrol is volatile, sure it is but why to worry putting a drain plug in fuel tank, even if you want to drain tank at home you will run the car and collect from engine bay, forget fuel stealing thru drain plug, leakage if minor might get un noticed and hazard free but when it is at certain level there isnt much time fixing it and for sure it gets fixed in time though never ever heard of leakage from fuel tank drain plug.