You might say that the 2021 Toyota Sienna is all-in on hybridization. That's because there's no longer a gas-only version available. The front- and all-wheel-drive versions of Toyota’s popular family mover come with a 2.5-liter four-cylinder hybrid engine and an electronic continuously variable transmission. This combination promises impressive fuel-economy numbers, according to Environmental Protection Agency estimates, and it may be one way that the Sienna truly distinguishes itself as a minivan in an increasingly SUV world.
With families opting for SUVs, Toyota has seen sales of the Sienna take a nosedive the past few years. Competitors, the Chrysler Pacifica and Honda Odyssey, also have seen fewer sales. By moving to partial electric power and delivering gains in fuel economy, Toyota aims to keep buyers happy, and the company might even siphon minivan fans from other brands. Available AWD also distinguishes the Sienna and helps make the case for it as an SUV alternative.