With the outfield road course at Las Vegas Motor Speedway in front of me, I flip the toggle at the base of the 2020 Ford Mustang Shelby GT500’s center stack to Track mode. The rumbling, grumbling, engine note perks up, the steering get heavier, the magnetic ride dampers stiffen up, and the transmission switches over to its most aggressive program.  This Rapid Red GT500 is decked out for ultimate road-course performance. It has the $18,500 Carbon Fiber Track Package, which includes sticky Michelin Pilot Sport Cup 2 tires, wider and lighter carbon-fiber wheels, an adjustable carbon-fiber rear wing, a carbon-fiber instrument panel, form-fitting Recaro bucket seats, and a rear-seat delete. For the track, Ford has adjusted the rear wing to add 6 degrees of pitch and removed the front scoop’s undertray for more airflow. Those tweaks help the car create 550 pounds of rear downforce and 88 pounds of front lift at the GT500’s electronically limited 180-mph top speed. Much of that front lift is caused by the virtual 550-pound gorilla sitting on the trunk. This car also has a bolt-in half roll cage and a six-point harness to keep drivers with varying degrees of talent and brains safe. On t...