changes 2006: the front fascia, side molding, headlamps and tail lights were restyled. Blue-backlit electroluminescent Optitron gauges were added to LE, XLE, and Limited trims. The "XLE" prefix in "XLE Limited" was removed, and new exclusive equipment for this trim included an optional memory function for the driver's power seat and side-view mirrors (also available on XLE as an option) and power-folding exterior side-view mirrors with integrated in-glass LED turn-signal repeaters. Other options included Bluetooth and a power-folding third-row seat. Front row side torso airbags and side curtain airbags for all three rows became standard equipment on all models. The optional rear seat audio system was discontinued. Horsepower and torque ratings were changed to meet SAE's new standard to and 222 lb·ft (from and , Toyota also now rates engines on 87 octane). 2007: a new ULEV-II certified 3.5-liter 2GR-FE V6 engine rated at with a rated fuel economy of 17/23 MPG for front-wheel-drive models and 16/21 MPG for AWD models replaced the 3.3-liter V6. This engine had a lower-maintenance timing chain as opposed to the timing belt of previous Sienna engines. The tire pressure monitor was upgraded, and a new seven-spoke alloy wheel design was made exclusive to the Limited and AWD models. 2008: Vehicle Stability Control became standard in all trims. 2009: the Sienna remained largely unchanged, except for a revision in pricing to become more competitive through several available comprehensively equipped "extra-value package" offerings. In Canada, base prices were lowered by up to $1,500. Rear power window switches were also modified to comply with new regulations against toggle window switches. 2010: the second generation Sienna was unchanged in its final model year. Third generation (XL30; 2010) The redesigned Sienna premiered at the Los Angeles Auto Show in early December 2009 for the 2011 model year. It was designed at Calty studios and engineered at Toyota Technical Center in Ann Arbor, Michigan and Toyota Motor Corporation in Japan. The new Sienna arrived at dealers in February 2010. In November 2011, exports of the XL30 Sienna to South Korea began, making it the first Toyota minivan sold in the country. In the U.S., the third-generation Sienna was is offered in five trim levels, a base grade, LE, XLE, Limited and for the first time the SE trim. The new SE offers revised bodywork, clear tail lamps, wheels, firmer suspension and revised steering tuning for a sportier ride. All-wheel-drive is