Aerovault is a lightweight, aluminum, enclosed trailer that is extremely easy to tow. It is stable and light enough to tow with an SUV. Every Aerovault is built on an aluminum frame with a fully skinned underside, outfitted with: a winch with a remote control fob, an onboard battery, N-speed rated (87mph) trailer tires, an identical full size spare, Glo-Light and LED interior and exterior lights, and more. Aerovaults come in a variety of sizes with a number of available options. Aerovaults are as enjoyable to tow as the race car or high-performance vehicle inside is to drive. Aerovault trailers, bringing towing to the 21st century. Frontal Area and the Myth of the “V” One of the most important aspects of aerodynamic efficiency is frontal area. Some trailer manufacturers make an attempt at reducing drag by simply angling the nose of their trailers into a V shape or incorporating a slope nose. Those tricks don’t reduce frontal area however. It’s an uneducated guess, or at best an attempt in reducing the CD (co-efficient of drag), but, believe me… sharp angles don’t help much.