The Toyota Sienna is a highly variable family vehicle, with seven models to choose from in 2007.  The three higher trim levels are all available with all wheel drive.  The Sienna is now the most powerful minivan on the market, thanks to the addition of a more potent engine.  
While all models are considerably well-appointed, building up the Sienna with option packages can be rather costly.  All options are organized into numbered packages, and very few items are available as stand-alones.  The LE comes standard with an in-dash CD changer, heated mirrors, full power accessories, cruise control, and keyless entry.  Options on this model include power sliding doors, a JBL audio upgrade, and a rear seat DVD entertainment system.
The Sienna houses a new 3.5 liter DOHC V-6, which generates 266 horsepower and 245 pound-feet of torque.  The upgraded engine provides enough power to pull 3500 pounds.  All Siennas use a five speed electronically controlled automatic transmission, and the non-AWD models are front wheel drive.  Toyota includes many of its acclaimed safety features, like ABS with Electronic Brake-force Distribution and Brake Assist, and the Advanced Airbag System with front seat-side and side-curtain airbags.