3. The Bike
Fans have seen cars, motorbikes, tanks, trucks, fire engines, buses, RVs and every other vehicle you could pretty much imagine.
So why is Enid's bike only coming to the forefront now? Can you believe that this was the first time someone has cycled since the Pilot episode? If you think about it, it's the ultimate apocalypse surviving tool.
They wouldn't need fuel, they wouldn't make any walker-attracting sounds, they could flee danger instantly and they could hide bikes anywhere in the world. And it's hardly like there'd be a shortage with every household surely containing some form of bike?