Chevrolet TrailBlazer is powerful, rugged and capable, yet smooth, comfortable and civilized. Its rigid chassis, sophisticated suspension, powerful brakes and impressive details place it among the best of the mid-size SUVs. It's stable and manuverable, and provides a smooth ride. It handles rough washboard surfaces well and is capable off-road, offering a sophisticated four-wheel-drive system and skid plates. TrailBlazer comes standard with a superbly smooth and modern inline six-cylinder engine. An extended-wheelbase model called the TrailBlazer EXT adds three-row seating, accomodating up to seven people. It comes standard with the same excellent six-cylinder engine, but a new V8 is also available. New for 2005, the Vortec 5300 V8 with its Displacement on Demand technology promises about 8 percent better fuel economy than the engine it replaces. Equipped with the V8, a 2WD Trailblazer EXT can tow up to 7,000 pounds. The EXT needs the V8 due to its heavier weight, and because of its much greater length, the EXT lacks the handling and stability that make the standard TrailBlazer such a great family vehicle. Curtain side-impact airbags with a rollover sensing system designed to provide increased head protection are available on 2005 models. Also new is an occupant-sensing system for the front passenger-side airbag. There are also improved seats, refinements to the navigation system and more bright trim for the interior.