Toyota has little reason to change the powertrain for the 2020 Sienna, since it remains one of the most powerful and efficient in the class. Under the hood is a naturally aspirated 3.5-liter, V-6 engine that is mated to a precise eight-speed automatic transmission. It will produce 296 horsepower and 263 pound-feet of torque.
The 2020 Toyota Sienna joins several other new models in offering a smartphone-compatible infotainment system. Future owners of all available trims will be able to use the Apple CarPlay™ suite of applications. Compatibility with the Amazon Alexa digital home assistant is also standard equipment.
Nobody will be at a loss for interior space when they choose the 2020 Toyota Sienna. Up to eight passengers can fit inside the newest Toyota minivan, with some trims offering a seven-passenger capacity – depending on the seating configuration. When the rear seats are properly stowed, the 2020 Sienna makes up to 150 cubic-feet available.