We have already seen plenty of impressive simulators over the years but the following definitely is noteworthy. The guys at Virtual Racing Experience have build a full-size stock car simulator, allowing sim racers to experience virtual stock car racing in a very authentic atmosphere.
The simulator is built into an authentic stock car, featuring a triple-screen setup fit into the car along with a button box and authentic steering wheel + seat. The simulator runs ARCA Sim Racing, you can check it out on photos and in a short video below.
More info on VRE can be found on their website.