The newest Theon Design Porsche 911 commission is based on the 964 coupe, featuring a carbon-fiber body with steel doors that preserve the classic feel.Weighing a claimed 2527 pounds, it has a 421-hp 4.0-liter flat-six that gives the restomod a power-to-weight ratio better than a 992.2 GT3. Theon Design will build just six of these cars, with each price likely to exceed $600,000.