The Toyota Highlander V6 has steadily made strides in performance over its lifespan, but for 2017, the powertrain upgrade is perhaps the most dramatic. The new 3.5-liter D-4S Injection V6 pushes output to 295 horsepower and 263 lb.-ft. of torque, which represent increases of 25 hp and 15 lb.-ft., respectively, over the 2016 Highlander V6. The new V6 also becomes the base engine for the Highlander Hybrid and features Dual VVT-i.