2012 Buick Regal Base 4dr Sedan Base Electronic 6-Speed Automatic w/OD

Regal was redesigned and introduced as an all-new product for 2011.For 2012, the Regal lineup expands to include a broad range of powertrain choices.The 2012 Regal lineup includes an inexpensive model with a four-cylinder engine, a mild hybrid version of the same car called Regal with eAssist, a sporty Regal Turbo, and a high-performance Regal GS.

The Buick Regal models compete with versions of the Lexus ES, Acura TSX, Volvo S60, Volkswagen Passat, Audi A4, and Mazda 6.The Regal uses front-wheel drive and comes with Stabilitrak electronic stability control and traction control.

The Regal is an attractive car, seemingly blending styling elements from American, European and Japanese designs.We're not sure the optional rear spoiler improves its sleek lines.

A welcome refuge on miserable commutes, the Regal cabin is attractive and comfortable, a mix of sporty and luxury much like an Acura TSX.Secondary controls operate with tactile clicks that feel like quality, and the navigation system is easy to use.Doors close with a solid thud.Bluetooth for hands-free cell phone operation and heated front seats are available, but we were surprised to note the absence of a rearview camera or memory for the seats listed among the options.The back seat is suitable for two but not three.

Underway, the Buick Regal is among the quietest cars in its class.We found it rides smoothly, absorbing bumpy pavement, a benefit of its rigid structure.Its fully independent suspension has been tuned for ride comfort, but it handles well on winding roads, and the steering and brakes are up to spirited driving.

Regal comes standard with a 182-hp 2.4-liter four-cylinder engine and 6-speed automatic.This engine, called Ecotec, delivers 19 mpg City, 31 mpg Highway, according to the Environmental Protection Agency.

With eAssist, Regal earns an EPA-estimated 25/36 mpg City/Highway.Regal with eAssist is equipped with the same 2.4-liter engine along with a traditional 6-speed automatic transmission, and it drives similarly to the standard Regal.The difference with eAssist is that a small, battery-powered 15-kW motor-generator provides extra thrust when accelerating.Buick says this results in a 25-percent improvement in fuel economy, partly because the four-cylinder engine doesn't have to work as hard.To save gas, the engine shuts off whenever the car is stopped and seamlessly restarts it when the driver steps on the accelerator.Like most hybrids, eAssist uses regenerative braking, a system that recharges the battery whenever the driver steps on the brakes.Some call this light-electrification technology a mild hybrid, but there is no all-electric mode and it costs a lot less than a full hybrid gas-electric powertrain.

The sporty Regal Turbo comes with a turbocharged 2.0-liter engine rated at 220 horsepower and 260 pound-feet of torque.Yet in spite of its dramatically increased performance it offers an impressive 20/32 mpg.As if to highlight their sporty role, the turbocharged models only come with 6-speed manual transmissions.(An automatic is expected to be added soon, however.) The Regal Turbo is intended to compete with the Acura TSX, Volvo S60, and Volkswagen CC.

The new Regal GS features a high-output turbocharged engine making 270 horsepower and 290 pound-feet of torque.It's the highest output engine GM has ever made in terms of horsepower per liter.To manage all this power, Regal GS comes a special front suspension that makes steering quicker and sharper, computer-controlled shock absorbers with three selectable ride modes, heavier springs and stabilizer bars, Brembo four-piston front brakes, and a choice of Goodyear GS-A or Pirelli P Zero tires on alloy wheels.Subtle exterior trim differences include a special rear bumper fascia that integrates the dual exhaust tips.

The Regal GS is quicker and more agile than the standard version.The Regal GS can accelerate from 0-60 mph in 6.7 seconds, according to Buick.At the same, the Regal GS earns an EPA rating of 19/27 mpg.The Regal GS is pleasant for everyday driving, the 6-speed manual shifts well.Drivers who like European sports sedans with manual gearboxes will like the 6-speed manual, but we can't help but think most drivers will prefer an automatic with this car.

Regal with eAssist comes with 17-inch alloy wheels with low-rolling resistance tires, a economy mode for the air-conditioning system, low-drag underbody aerodynamics, special instrumentation and other features related to the fuel-saving eAssist technology.

Regal Turbo ($29,875) comes with a 220-hp 2.0-liter turbocharged engine, 6-speed manual, larger brakes, variable-assist power steering (hydraulic), upgraded audio, power seats, remote keyless entry.

Regal GS ($34,450) comes with a 270-hp 2.0-liter turbocharged engine, 6-speed manual, Brembo brake calipers, a higher-numerical final-drive ratio, bodyside chrome, body-color rocker sills, extended range for the remote keyless entry, special sport seats, high-performance front struts, tire repair kit (in place of spare), 19-inch wheels.

Safety features include six airbags standard, rear-seat side-impact airbags optional.Stabilitrak electronic stability control is standard, along with ABS and Quick Brake Assist.Rearview camera not available.

Shiny bits on the sides are limited to the window surround trim and a front fender-mounted turn indicator.There are no rub rails or chrome strips along the side, and a simple character line sweeps down and aft behind the front wheel and carries through the rear door.The lower edge is void of trim but it does get the textured paint protection to minimize stone chips.All the wheels have plenty of spokes yet nothing cross-laced your car wash will abhor.

Regal gets the majority of its Buick-ness at the ends, both slathered with abundant chrome trim.The lengthy nose carries a prominent waterfall grille framed by lamp clusters.On the turbo, the daytime running lights are right-angle segments that look like arrows pointing out and up toward the rear-view mirrors.

A large chrome spear is anchored with big Buick crest on the trunk, and the sweep of the lamps mirrors that of Regal's big-brother LaCrosse.

Regal makes a clean profile.It is six inches shorter than the LaCrosse and is longer than all but one of the cars Buick mentions as potential competitors.

An ebony cabin is mostly black, with light stitching is the seats and trim, a light headliner, some trim matte-finish silver and other chrome, with dash, door and console sweeps done in piano-black trim.With light-cabin trim, the upper and lower doors, lower side pillars and the dashboard are chocolate, the mid-doors, seats and carpeting a light tan or cream color, and the trim sweeps are woodgrain.While the latter is the warmer of the two and gives a more luxurious impression, others will find it busy and prefer the sportier, more monochromatic look of the ebony interior.

The seats are comfortable with good support for long trips.Bolsters are low for comfort and ease of getting in and out.Regal GS comes with special sport seats.Some drivers find the headrests farther forward than they preferred, a common complaint as safety regulations continue to tighten.

Rear seats are quite comfortable for occupants to around 5 feet, 10 inches.The back seat is best limited to two passengers, and we found no center headrest.That sloping roofline, even with a section carved out of the headliner, limits rear headroom, a problem the Volkswagen Passat and Mazda 6 don't have.Rear legroom and toe space in the Regal is good, better than most in this class, the Passat and Mazda 6 being the exceptions.We'll call the center fold-down section an elbow rest because it's wide and short, and note rear passengers do have AC vents and reading lights.

A contemporary control layout places the tip computer/message center between watch-dial-like speedometer and tachometer, and below numbered fuel and coolant gauges; like everything else these are illuminated in icy blue.

The navigation system is easy to use and has a nice display.We found the 7-inch screen easier to read than the Ford systems though it isn't as large as those in the latest Chrysler models.The screen is top center for good line-of-sight use and is as intuitive as any other GM system.The system can be operated by touching the screen directly or by using a more easily accessible multifunction controller on the center console behind the shifter.Surprisingly, no rearview camera is available.

Myriad white-on-black buttons cluster on the center panel for audio, car, and navigation details with left/right temperature climate control below.Behind the ashtray a large piece of chrome frames the shifter and it, like the chrome lips on the gauges and rotary dash controls, readily catches sun glare.The matte-finish sweep around the shifter floats above the console, suggesting it will easily catch and trap detritus or cords for small electronics.Cubby storage is adequate.Some storage is available under the asymmetric center armrest, and the oddly contoured door pockets hold quite a bit.A pair of useful cupholders resides on the center console.

The steering wheel is the most sporting ever found in a Buick and the redundant controls handy on the road.Given the sporty implications we were surprised to not find shift buttons on it, but the shift lever does have a manual gate.The instruments and navigation system are easy to see day and night.Outside visibility is quite good by modern safety-car standards.

The trunk is quite useful, with moderate lift-to-load and lift-to-unload dimensions, flat side walls, securing points and 14.2 cubic feet of volume because it's fairly long.Press the release on the remote and the trunk lid pops open, helpful when carrying an armload.The split rear seats fold down and there's a lockable pass-through though it's a long reach through the trunk to lock it.

The Regal rides well, with minimal intrusion from road imperfections.It has a very solid feel, and one of substance in keeping with its weight.Driving it hard or fully loaded at speed will belie that, however.While bred on the autobahn it has been tuned for comfort and the rear suspension damping is quite soft.An Interactive Drive Control System, standard on Regal GS, optional on the Turbo, allows the driver to select different suspension settings and steering sensitivity.Pressing the Sport or GS buttons while cruising along noticeably firms up the shock damping, a good thing to do when driving hard.The normal mode better filters out vibration and bumps in the road, however.

The Regal is an excellent touring car for extended ventures or simply long commutes where the soothing could be beneficial, but it is not a sports sedan.The turbo makes it a sporty sedan, while the Regal GS is more of a sports sedan.It's front-wheel drive, however.True sports sedans are rear-wheel drive.

The 2.4-liter four-cylinder that comes standard provides 182 horsepower and 172 pound-feet of torque.It needs to be revved to get the most out of it, and a 3600-pound Regal with a pair of people in it can use every one of those ponies.It's quite satisfactory around town or on the open road, but you'll be pushing it when climbing a mountain grade or passing a truck on a two-lane.

Regal with eAssist adds to this a small electric motor to assist the 2.4-liter four-cylinder engine in certain situations, boosting the fuel economy rating to an EPA-estimated 25/36 mpg City/Highway.It works just like the standard model except the electric motor gives it a 15-hp shove when taking off from intersections or going up hills, resulting in better acceleration performance and better fuel economy, the best of both worlds.The engine shuts off when you stop for traffic signals, for example, then seamlessly restarts when you step on the accelerator.

The Regal Turbo adds about 40 horsepower but far more important close to 90 pound-feet of torque and at much lower revs.This makes the Regal more relaxed, downshifts happen less often, and it feels much more powerful than the 1-second quicker to 60 mph implies.

With the 6-speed manual gearbox, clutch effort is easy.Shifting is smooth from the short shifter.It reminds us of a manual on an upscale German sedan.

Fuel economy from the standard Regal is an EPA-estimated 19/30 mpg City/Highway.By comparison, the Mazda6 gets 21/30 mpg, the Audi A4 is rated 23/30 mpg, the Acura TSX 21/30 mpg, and the Volkswagen Passat 22/31 mpg.

The steering provides good feedback, feel and directional stability.It doesn't have the crispness or feel of a sports sedan.It's tuned for easier cruising.Brakes are up to the task, and both the gas and brake pedals are calibrated such that they require some foot travel before you get into heavy braking or kick-down acceleration rather than the instant bite of a sports sedan.

The Regal GS delivers 270 horsepower and 290 foot-pounds of torque from its high-output 2.0-liter turbocharged four-cylinder engine with dual overhead cams, four valves per cylinder, direct fuel injection, a complete 3-inch exhaust system, and 20 pounds of peak turbo boost.

The 2012 Buick Regal GS is the first hot-rod Buick to come along in many years, and it's a treat to drive.Stand on the throttle while in second gear at a slow speed and it'll break the front tires loose on wet pavement (if the traction control is turned off).Stabilitrak keeps the front wheels from spinning, however, important in the rain.We were impressed by the quickness and smoothness of the powertrain, the steering response, and the braking power when you really need it.More important, it isn't a hammer.The ride is firm but it isn't harsh.Overall, the Regal GS feels like a refined car.

G.R.Whale filed his report from Los Angeles; with NewCarTestDrive.com editor Mitch McCullough reporting from New Jersey.