Shopping Carts and ATKs are the only vehicles in Fortnite, with the ATKs being added in Season 5 and they have just been disabled due to a bug that was found. In Season 5, Week 4, one of the challenges that need to be completed is the Jump through flaming hoops with a Shopping Cart or ATK. With both of these being disabled, it is impossible to complete this challenge if you haven’t done so already. Epic will most likely be looking for a fix to this bug as soon as possible to players will be able to complete the challenge.
Here is the bug that caused both the Shopping Carts and the ATKs to be temporarily disabled in Fortnite until a fix is found:
https://twitter.com/8bitreal/status/1025421953555935232
As you can see, the ATK seems to disappear completely into the ground in Fortnite, which makes it impossible to use anyway. We will keep you updated as to when the Shopping Carts and ATKs are enabled again in Fortnite.
These vehicles have made it easier to travel around the map and it seems like more players have been landing on the outskirts of the map compared to before the vehicles were introduced to Fortnite. The ATKs in particular are found mainly on the edges of the map, no doubt to encourage players to land in different areas, knowing they should be able to get out of the storm if they find an ATK. With the vehicles being temporarily disabled, we may see that less players will be landing on the edges of the Fortnite Island.