Availability expected: early 2007

A North American version of the Estima Minivan, available in Japan since 2001. This will likely be the first hybrid minivan on the North American market

The hybrid Sienna is rumored to use the same powertrain as the highlander hybrid suv. It could potentially deliver up to 270 hp total, allowing the mini van to do 0-60 mph in about 8 seconds or less.

Expected mileage: High 20's overall

Expected Engine Size: 2.4 liter, four-cylinder engine Toyota Sienna Hybrid vehicle.

Hybrid Sienna Could look like its sister version of Estima Hybrid

The Japanese Estima Hybrid uses a 2.4 liter, four-cylinder engine. The U.S. Sienna hybrid system is rumored to be based on the Estima model.