What methods of transportation does Piltover and Zaun use?

I know rockets bombs and crab legs are popular methods these days in the streets of Zaun, but what are other ways people get around? Does either city have a railway system, cars, motorcycles, planes, and/or helicopters? There is a zeppelin in the get jinxed music video, so I think that's one.

Also where does corki fit? Is his lore outdated since Piltover ain't to crazy about yordles anymore? If so, what's he doing? Did he invent the helicopter, did he steal one, or is he still part of some kind of air force and they don't know he's a yordle? An answer to that could help me out.

Sorry if this seems like a stupid or weird question, but it's really been bugging me.