The electronically controlled steering is reasonably responsive, having overcome the spongy on-center feel and directional uncertainty in the technology's early years. Like all variable-assist systems, it provides the driver with more assistance at low speeds for parking maneuvers, with less power assistance at highway speeds for better steering feel. The SS comes with fatter tires that make for quicker and more precise turn in.

GM's 2.2-liter, dual overhead cam, four-cylinder Ecotec engine serves as the base engine. Saddled with a car weighing more than 3000 pounds, its 144 horsepower delivers what's best described as casual acceleration. However, it does achieve an EPA-estimated 24/34 miles per gallon city/highway fuel economy rating.

The 3.5-liter V6 delivers 200 horsepower while achieving 23/32 mpg in the sedan and 22/30 in the Maxx. We were pleased with its overall balance and smoothness, but wished for a bit more oomph for demanding maneuvers at highway speeds.

The new 3.9-liter V6 that comes on the SS is a welcome upgrade. It's decently up to date, with variable valve timing and the like. It's quick off the line, thanks to the low engine speed at which its torque peaks, and its healthy measure of horsepower handles freeway on-ramps and high-speed passes with relative ease. There's a taste of front-wheel-drive syndrome (torque steer), where the steering wheel pulls this way and that during hard acceleration, but we've experienced more in cars costing more. Fuel economy takes a hit, dropping to 18/26 mpg city/highway, but it seems worth it for the improved performance. An SS-exclusive feature we found disappointing was the sport-shift mechanism on the transmission. This consisted of a small, rocker switch on the side of the top of the shift knob, hardly an intuitive approach. Seeing as how the gear selection is all done electronically anyway, why not a secondary slot in the shift gate where a driver can actually move the lever to select a gear? On the upside, the system did hold the chosen gear all the way up to the engine speed limiter and against every effort to force a downshift.

Models with the four-cylinder engine come with front disc and rear drum brakes. V6 models get four-wheel disc brakes with ABS and traction control. ABS allows the driver to maintain steering control under hard braking, while traction control slows a spinning wheel as needed to restore grip. Technology aside, the firmness of the brake pedal impressed us and inspired confidence, as did the couple of times we felt the ABS step in to hasten our deceleration on wet roads. Along these lines, we're disappointed not to see any form of electronic stability control offered on the Malibu.