The Pacifica lineup includes four trim levels: base, Touring, Touring Signature, and Limited. Limited is built only with all-wheel drive; the other models are offered with front-wheel drive or AWD. All models are powered by the same 3.5-liter overhead-cam V6 rated at 250 horsepower. All come with a four-speed automatic transmission with an AutoStick manual mode. Safety features that come on all Pacificas include dual multi-stage frontal airbags; driver-side inflatable knee bolster; three-point seatbelts at all seating positions; front seatbelt pretensioners and load limiters; and child safety seat anchors.For 2006, all Chrysler Pacifica models come with the more powerful 3.5-liter overhead-cam V6. Its lineup also gets new Signature Series models that combine popular options with a unique look, at a discounted price.