Toyota puts 4 cylinder in 2011 Sienna van HO This photo released by Toyota show the 2011 Toyota Sienna. It’s the first Sienna with a fuel-efficient four-cylinder engine, and therefore ranks second best among vans in gasoline mileage with a 19-miles-per-gallon city rating and 24 mpg on the highway. 105 JPEG | 124 MB [...]