From Car and DriverIn our March '99 test of a 9-5 wagon, we said it may be the best-handling Saab ever built. The Aero variation is even more so. Its ride height is reduced by nearly half an inch, and the front and rear anti-roll bars are stiffer, as are the springs and dampers. The front and rear suspension bushings have been beefed up and the MacPherson struts retuned with new pistons. The front brake discs are larger, and the wagon's standard tires are grippy Michelin Pilot HX 225/45WR-17s.On the appearance side, the Aero wagon is distinguished by flared rocker panels, a front air dam, and a rear valance. The wheels are alloy 10-spoke, two-piece BBSs. A sportier steering wheel with polished wood grips adds a luxo touch.The biggest difference between the standard Saab station wagon and the Aero version is 60 horsepower. This Aero wagon's four-cylinder engine puts out 230 horsepower, and its boost is quite apparent, especially with a manual transmission (the automatic we tested is optional). The Aero inhales first gear so quickly that it takes a little practice to stay out of the rev limiter before snapping the smooth-shifting, short-throw lever through the gears. There's a noticeable tug of torque steer off the line with the manual, but this disappears with the automatic. Acceleration through the gears is more like a sports car's than a sports wagon's, and throttle response is impressive across the normal driving speed.