FIRST OF Only 500 of these trucks will but built for the US in the 2020 model year. All vehicles will be included in the Shelby American Registry. - Shelby?s adaptation of Ford?s F-150 is as natural as going racing while raising chickens, something Carroll did at the beginning of his legendary career. Although Shelby would have hauled chickens, the Shelby F-150 is simply built to haul, via its 395 standard horsepower or checking the option box for 770 horses. Of course, it?s more than just horsepower under the hood ? it?s getting those available horses to the ground. And with the Shelby F-150 suspension ? both the Shelby?s standard spec and available FOX suspension system ? the horses get to the ground, whatever and wherever the ground happens to be.