There’s a three-way tie at the 72.7 percent mark. We’ll start with the GMC Sierra 1500. Since NADA does their research with the most widely purchased models and in the Sierra’s case that’s the Crew Cab SLE model with four-wheel drive and the 5.3-liter V8 engine. That engine makes 355 hp and 383 lb-ft of torque and features cylinder deactivation, direct injection and variable valve timing to improve efficiency.
