What Toyota Sienna has the most horsepower?
The Sienna model with the most horsepower is the 2011–2020 generation, which uses a 3.5-liter V6 engine producing 266 horsepower. The current 2021–present Sienna runs on a 2.5-liter hybrid powertrain that delivers about 245 horsepower combined, which is less than the peak.
Below is a concise look at how horsepower has varied across Sienna generations, how Toyota achieved its peak, and how the latest model compares in terms of performance and efficiency.
Horsepower across Sienna generations
To help readers compare, the list below shows the main engine options and approximate horsepower figures published by Toyota and EPA data. Note that exact horsepower can vary by trim and model year.
First generation (1997–2003): 3.0-liter V6 (1MZ-FE). Roughly in the high 190s to around 200 hp, depending on year and tuning.
Second generation (2004–2010): 3.3-liter V6 (3MZ-FE). In the range of about 210–230 hp, varying by specific model year and calibration.
Third generation (2011–2020): 3.5-liter V6 (2GR-FE). Officially about 266 hp, a clear peak for Sienna gasoline-powered variants.
Fourth generation (2021–present): 2.5-liter inline-4 hybrid system (combined output around 245 hp). Prioritizes efficiency with strong total system horsepower.
In sum, the 2011–2020 Sienna with the 3.5L V6 holds the horsepower record for the model line, while the latest generation focuses on better fuel economy with a hybrid setup that still delivers compelling performance.
Performance vs. efficiency: how the numbers play out
Drivetrain and torque
Performance is not determined by horsepower alone. The Sienna’s torque curves, transmission, and all-wheel-drive availability influence real-world acceleration and drivability. The 3.5L V6 variant offered strong torque on demand, while the hybrid system emphasizes smooth response and economy rather than outright horsepower.
For families and daily driving, horsepower is just one factor to consider alongside cargo space, ride comfort, and available safety technology.
Summary
The horsepower crown goes to the 2011–2020 Sienna with the 3.5L V6 at 266 hp. The current 2021–present Sienna, powered by a 2.5L hybrid, delivers about 245 hp combined—strong, but not the peak for the model line. When choosing a Sienna, consider whether you value peak horsepower or hybrid efficiency and modern features for your needs.
