i think i could physically have something like this , because the university i go to has a workshop place , someone got a panel for their computer case cut there...
it wont be a scratchbuild, because the beginnings of this idea came from me seeing someone turn a mini lst into a crawler... the entire independant suspension part can be taken right off an existing truck, you'll need custom plates to go where the chassis plates used to mount to the gearbox, and a custom shock tower, which i think will be the most important part
maybe any 4-link capable chassis, like from crawlers and stuff,which hold a center tranny, can be used... the idea is to get that chassis much heavier than the gearbox in order to push on the links, otherwise its going to have no suspension travel, i think....

thats why i asked the question, wether if any real cars have anything like this because i have no idea how well it actually works...