2011 SIENNA PRELIMINARY SPECIFICATIONS
| Engine | 3.5-liter V6 | 2.7-liter L4 |
| Total Horsepower | 266 hp | |
| Transmission | 6-speed ECT-i automatic | 6-speed ECT-i automatic |
| Towing Capacity (lbs.) | 3,500 | N/A |
| Width (inches) | 78.2 | 78.2 in. |
| Height (inches) | 68.9 70.7 with roof rails | 68.9 70.7 with roof rails |
| Overall Length (inches) | 200.2 | 200.2 |
| Wheelbase (inches) | 119.3 | 119.3 |
| Wheels Sienna grade and LE FWD XLE FWD LE, XLE, LTD AWD SE | 17-inch five-spoke alloy 17-inch seven spoke machine finished alloy 18-inch 10-spoke machine finished alloy 19-inch six-spoke Super Chrome finished alloy | 17-inch five-spoke alloy |
| Tires | P235/60 R17 (Sienna grade, LE, XLE) P235/55R18 (Limited) P235/55RF18 (AWD models) P235/50R19 (SE) | P235/60 R17 (Sienna grade, LE) |
| Emissions Rating | ULEV II | TBD |
