Assuming it’s in the states, a mid 2010’s Ford Transit or a late 90’s GMC/Chevy. I figured it would be white, because they’re so common that it would blend in to the surroundings. Throw a magnetic sign on it and no one will look for it.
I do like Darklord’s idea, but the main problem with it is that a box van that big requires an upgraded license, so there’s fewer of them on the road and they’re easier to spot. They’re also harder to hide, as they’re not designed for most garages. But think of all the fun times that could be had back there. They’re very common for deliveries and glamping, or as those of us outside of Gen Z call it, being homeless in a van down by the river.
