2017 Toyota Sienna adds more power, more fuel economy
Toyota’s Sienna van adds a more powerful and more fuel-efficient engine for 2017 and now ranks at the top in gas mileage ratings with competing family vans. The new, 296-horsepower, 3.5-liter V6 adds 30 horsepower and 18 foot-pounds of torque to the front-wheel drive Sienna while boosting fuel mileage, as measured by the U.S. government,