Mil-spec F-150 Intrepid Supertruck has a supercharged 675 horsepower V-8

Mil-Spec Automotive is a company that has been taking trucks and SUVs and souping them up for a long time. The company made its name modifying the long discontinued Hummer SUV. In recent years it’s turned its hand to modifying the best-selling Ford F-150 pickup. Its latest product is the Intrepid F-150 Supertruck, and the pickup is packed with modifications. …