Sprinter Poptop Roofs
Sprinters have become somewhat of defacto vehicles to build out in many ways for weekend adventures all the way to full time living. One of the best ways to get the most amount of space is to go up.
Westfalia
Colorado Campervans
Link to their Sprinter Tops. They have other tops for other vehicles as well.
SCA Poptops
Two scissor frames pop up this roof tent at and angle and are helped with four gas struts, the roof is quickly raised. It’s not a true vertical popup and more of a clamshell style. But looks really good.
They do make a universal model that could be used for other applications like a T1N.
Travois
These are provide by an “authorized Mercedes Benz upfitter”. Staring at $12,500 they’re not cheap. You can find out more here