At the Chicago Auto Show that is scheduled to start tomorrow, Buick will bring the 2012 Regal eAssist, a new model added to the current Regal line-up that already includes the 2.4L and 2.0L Turbo models, and the upcoming Regal GS. The new model will go on sale this fall. The same technology has been recently unveiled in the 2012 Buick LaCrosse.

"Buick’s eAssist technology means customers don’t have to trade a premium driving experience for efficiency," said Tony DiSalle, vice president of Buick marketing. "We believe Regal and LaCrosse with eAssist provide more logical and affordable choices, compared to other hybrid midsize and full-size luxury sedans. It’s really an extension of the conventional internal combustion engine, not a replacement for it."

The new eAssist technology combines a 2.4-liter four-cylinder engine with a small electric motor powered by a 115-volt lithium-ion battery. The result is an improvement of 20% in fuel economy.

Hit the jump to read more about the 2012 Buick Regal eAssist.

  • 2012 Buick Regal eAssist
  • Year:
  • Make:
  • Model:
  • Engine:
    four-cylinder Ecotec
  • Transmission:
    six-speed automatic
  • Horsepower @ RPM:
  • MPG(Cty):
  • MPG(Hwy):
  • Torque @ RPM:
  • Displacement:
    2,4 L
  • car fuel:
  • body style:

The exterior and the interior

Compared to a standard 2012 Regal, the eAssis version only received minimal changes, including new lightweight 17-inch alloy wheels and tires with lower rolling resistance. On the interior the new model gets a powerflow readout in the 7-inch infotainment screen, which shows the flow of energy through the electric assist system, such as battery charging from regeneration and electric power directed to the engine.

The engine

2012 Buick Regal eAssist Drivetrain
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The new eAssist technology combines a 2.4 liter Ecotec direct injection four-cylinder engine with a 115V lithium-ion battery and latest-generation 15-kW induction motor-generator unit that helps increase fuel economy through regenerative braking.

The eAssist system’s 115V air-cooled lithium-ion battery bolsters the 2.4L Ecotec four-cylinder engine with approximately 11 kW (15 hp) of electric power assist during heavy acceleration and 15 kW of regenerative braking power. The system also enables the Ecotec engine to shut down fuel delivery in certain deceleration conditions, which saves additional fuel. While in fuel shut-off mode, the induction motor-generator unit continues spinning along with the engine to provide immediate and smooth take-off power when the driver presses on the accelerator. Then, as the vehicle comes to a stop, the induction motor-generator unit spins the engine, bringing it to a smooth stop – properly positioned for a smooth restart.

With a total output of 182 HP, the car’s engine is mated to a new six-speed automatic transmission.

The competition

2012 Buick Regal eAssist High Resolution Exterior
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according to BUick, the new Regal eAssist targets models like the Acura TSX and the Volkswagen Passat CC. The TSX is offered with a choice of two engines: a 2.4L inline four cylinder engine and a 3.5L V-6, while the Passat CC gets a 2.0T engine tat delivers 200hp at 5100 rpm, and 207 lb.- ft. of torque between 1800 and 5000 rpm.


The new 2012 Buick Regal eAssist will go on sale later this fall. prices will be announced at a later date.

  • Leave it
    • Not as impressive as the GS version
    • Less powerful than competitors
What do you think?
Show Comments


  (619) posted on 01.31.2012

This sedan is one of a kind. It offers efficiency in fuel and energy. It now comes in lightweight wheels. The interior is good.

  (858) posted on 12.20.2011

Is it a hybrid vehicle? Well, I hope that it’s not! Anyway, Regal’s aesthetic design is very appealing on it and it truly looks so decent and exclusive on that. I am just hoping that it also has an impressive interior.

  (256) posted on 12.12.2011

I love the exclusivity of this Regal, and even though it only has a simple style and detailing, it still looks very lovely and attractive on that. Moreover, I think they should truly boost more its engine.

  (484) posted on 11.10.2011

I love the side rim of this vehicle, so simple but look so elegant on it. Anyway, I hope that its engine specification will be quite good enough for it, so it can still have a nice speed performance.

  (630) posted on 10.3.2011

Very stylish and trendy hybrid car. On the exterior and interior side, guess its more advanced definitely it changes results into a more appropriate and interesting car. d interesting car.

  (399) posted on 09.29.2011

I’m impressed with the simplicity that it had, because despite that it had an overwhelming appeal. The handling of it seems so nice, and I have the feeling that it is so fun to drive with.

  (415) posted on 09.5.2011

I have the same observation with YamahaBikes and I must that the interior is really impressive but I think it is more impressive if they add some advance technologies on it.

  (474) posted on 08.24.2011

Looks so simple and ordinay but I’m so impressed with the good looking interior of this Regal eAssist and the cool technology is so interesting.

  (372) posted on 07.28.2011

I like the interior of the car which is very spacious. There will be a tight competition between Acura and Volkswagen. The technology used is impressive too aside from not being a gas guzzler.

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