Little-changed for 2004, this crossover wagon shares its basic design and Toyota powertrain with the Pontiac Vibe, which differs in styling and features availability. Matrix has a swing-up tailgate and separate-opening window and comes in Standard, XR, and XRS trim. All use a 1.8-liter 4-cyl engine. Standard and XR have 130 hp in base front-wheel-drive form, 123 hp with all-wheel drive