Tesla $TSLA engineers have done a lot of work to get the Tesla Cybertruck as aerodynamically efficient as possible, while keeping the faux-futurist design that excites children. Tesla claims the truck has a coefficient of drag of just 0.34, which is significantly better than a JL-generation Jeep Wrangler’s 0.48, but significantly worse than the company’s own Model 3 at 0.23. For a truck, it’s surprisingly slippery through the air. It’s a lot less slippery if you are using the truck bed as a truck bed, though. A recent test from Car and Driver shows a 10 percent drop in range if you don’t close the tonneau cover.