It’s not my style- but they have the start of what could be a very interesting project, and obviously invested some time and work in to it. I hope they finished it, I’d like to see it when it is done.
The style is called: “Extreme body drop” amongst other names in mini trucking. But with the exception of projects on display, yes. They really are working vehicles. Most use hydraulics to raise and lower the vehicle. The extreme drop trucks like this mostly look pretty funny (or funnier,) when they are raised up to a height that is road worthy. Some people do actually drive their vehicles on the road at heights not much higher than this!
I remember seeing a captain sparkles video with it in.