Grunt and Grrrrr are important to truck buyers. Toyota has delivered both Gs in spades, especially with its newest powertrain, a 5.7-liter V8 engine mated to a six-speed automatic transmission that makes 381 horsepower at 5,600 rpm and 401 lb.-ft. at 3,600 rpm. The two other engine options are a 4.7-liter V8 generating 271 horsepower at 5,400 rpm and 313 lb.-ft. of torque at 3,400 rpm, and a 4.0-liter V6 engine with a rating of 236 horsepower at 5,200 rpm and 266 lb.-ft. of torque at 4,000 rpm. Both are tied to a five-speed automatic.