Ringbrothers, the world-renowned custom car builder and parts manufacturer, has unveiled its latest creation, a custom-built 1987 Buick Grand National known as “INVADR.” The twin-turbocharged Buick produces 1,246 horsepower and 1,000 ft-lbs of torque to the rear wheels and was engineered from the ground up. It is expected to shatter performance expectations, deliver an unparalleled driving experience and embody the singular workmanship that defines Ringbrothers.