Drag racing is measured in time elapsed from point A to point B with the quickest elapsed time, factoring in reaction time. You dont need to be fast, think of a Civic running a 10 second quarter at 110 mph and smoking a Corvette that runs 140mph but runs 11 seconds through the quarter, a quicker car will beat a faster car almost every time in a timed race. Sand cars and dune buggies are usually 2wd because of weight and simplicity. The lighter a buggy, the better and with the 2wd, the drivetrain is usually in thje rear so its all adding traction to the rear wheels, which are usually paddles on buggies. Steering is done with very simple, lightweight components and smooth tires with ribs. 4wd workd on the dunes, but weight means they need more power and more weight leads to problems. I like the rig too, just the price point is high and what is this rig designed for? It looks a bit too "Fragile(for lack of a better term) to be a hardcore basher and too heavy and complicated for a dune buggy, but a new market, like desert truggy or similar would be cool, but no word on what they were designing. I think it would be a great trail rig and fun given enough area and terrain.