The 2007 Toyota Sienna is offered in four trim levels, from relatively inexpensive to true luxury grade. Prices increase nearly $20,000 from bottom to top, and each model adds more comfort and convenience features. All share a new 266-hp 3.5-liter V6 and five-speed automatic transmission. All come configured for seven passengers, though the lower-trim CE and LE models are available with eight seats. All but the base CE are available with all-wheel drive.

The Sienna CE ($24,155) is the least expensive, but it comes with nearly all the essentials, including dual-zone (front and rear) air conditioning, power windows, door locks and mirrors, sliding doors on both sides, keyless entry and AM/FM/cassette with six speakers, single CD and an auxiliary jack for MP3 players. The upholstery is vinyl/fabric combo and the wheels are 16-inch steel with hubcaps. Second-row captain's chairs and a 60/40 Split & Stow third-row bench seat are standard. A second-row three-place bench seat ($150) is optional on the CE and LE.

The Sienna LE ($25, 680) is the most popular model. It adds nicer cloth fabric and several key features, including audio controls on the steering wheel, cruise control, heated mirrors, a roof rack, privacy glass, illuminated vanity mirrors and a fold-flat front passenger seat.

The LE AWD ($29,295) adds Toyota's fulltime all-wheel-drive system. Like other all-wheel-drive Siennas, it comes with 17-inch alloy wheels and run-flat tires, rear disc brakes (instead of drums), and daylight running lights (DRLs).

Sienna XLE ($30,125) and XLE AWD ($33,330) are more luxurious still, with yet another level of upgraded fabric, standard power sliding side doors and power liftgate, tri-zone automatic climate control (driver, front passenger, and rear), an eight-way power adjustable driver's seat, JBL Synthesis 360-watt audio with 10 speakers and a six-CD changer, rear seat audio controls, an overhead console with trip computer and universal garage-door opener, fog lights and a leather-wrapped steering wheel. The front-drive XLE comes with 16-inch alloy wheels.

The Sienna Limited ($35,465) and Limited AWD ($37,655) are equipped like a full-on luxury sedan, adding leather upholstery and features such as dynamic Laser Cruise Control, second- and third- row sunshades, high intensity discharge (HID) headlights, heated front seats with memory, front and rear park assist, auto-dimming electrochromic mirrors and side mirrors with puddle lamps and integrated turn signals. The front-drive Limited comes with the 17-inch alloys and DRLs.

Options are clustered in many packages that make it impossible to buy most extra features separately: electronic stability control, heated seats or rear-seat DVD, for example. The packages are trim-level specific, and vary in price depending on model. On the LE, they range from LE Package no. 1 ($780), with a power sliding passenger-side door, overhead console and universal garage opener, to LE Package 4 ($5,530), with the features in Package 1 plus the eight-way power driver's seat, power driver's door and rear hatch, premium JBL audio with CD changer and rear-seat DVD entertainment.

Safety features include front-impact airbags, front passenger side-impact airbags and curtain-style airbags designed to provide head protection for outboard passengers in all three rows of seats. All models are also equipped with a tire-pressure monitor and anti-lock brakes (ABS) with electronic brake-force distribution and brake assist, which together help the driver minimize stopping distance and maintain control when braking and swerving to avoid an accident. Toyota's Vehicle Stability Control (VSC) skid-control system is standard on the Sienna Limited and all AWD models, and optional on the others.