The original Predator in the S550 made 760 ponies and 625 pound-feet (847 Newton-meters) of twist, whereas the F-150 Raptor R's version belts out 720 and 640 (868) at the crank.

On a prepared surface, in perfect conditions, and with a clean launch, the S550-gen Shelby GT500 needs 3.3 seconds to reach 60 miles per hour (97 kilometers per hour) and 10.7 seconds to clear the ...

The V6 version offers up to 550 horsepower, while the Shelby Edition Raptor R squeezes over 900 hp from the engine it shares with the S550 GT500. This explains why Shelby mentioned both trucks and ...