The Sienna is available in a wide variety of configurations; front-wheel or all-wheel drive, 2.7-liter 187-hp four-cylinder or 3.5-liter 266-hp V6 engines, and seven or eight passenger seating configurations. Both engines use a six-speed automatic transmission with manual-shift capability. Four-wheel anti-lock disc brakes with brake assist, traction control, stability control, anti-whiplash head-restraints, tire pressure monitor... Read more »
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