The Quest is offered in four trim levels: base 3.5, 3.5 S Special Edition, SL, and SE. All are the same length. All are powered by Nissan's superb 3.5-liter V6 engine, all are front-wheel drive. Safety features include curtain airbags for all three rows, the required frontal airbags, active head restraints, electronic stability control, traction control, and anti-lock brakes with electronic brake-force distribution and Brake Assist, plus a tire-pressure monitor. Side-impact airbags are optional.The Nissan Quest is a carryover from 2005.