Unique with its all-four-cylinder powertrain, the Regal relies on the excellent horsepower-per-liter ratio of the Ecotec engine family to deliver smart, on-demand performance that is also very efficient.

Both the standard 2.4L engine and the available 2.0L turbo use direct injection technology to optimize performance, reduce emissions and maximize fuel efficiency. The 2.4L is the same engine offered in the Buick LaCrosse, but in the smaller, lighter Regal, it delivers more agile performance. The 2.0L turbo cements the sport sedan credibility of the Regal, with on-demand power comparable to a V-6, but the inherent efficiency of a four-cylinder. To ensure responsive power across the rpm range, the 2.0L turbo uses a twin-scroll turbocharger that builds power quickly at lower rpm.

Distinct, uniquely calibrated six-speed automatic transmissions are paired with each engine. Both offer driver shift control that enhances the sporty driving feel of the Regal.

Regal will initially be offered in premium CXL trim only, with additional trim levels to be offered in the 2012 model year. The well-equipped Regal CXL includes the following as standard or available equipment:

Standard 2.4L Ecotec direct injected engine rated at an estimated 182 horsepower (136 kW)
Available 2.0L Ecotec turbocharged and direct injected engine rated at an estimated 220 horsepower (164 kW) – available late-summer 2010
Both engines have a six-speed automatic transmission standard with driver-shifting control
A six-speed manual transmission will be available following the introduction of the turbocharged model.
Estimated 30 mpg on the highway with the 2.4L and 29 mpg highway with the 2.0L turbo engine when both engines use an automatic transmission
MacPherson strut front suspension and four-link independent rear suspension
All-new Interactive Drive Control System (IDCS) available with the 2.0L turbo, offering driver-selectable suspension settings and automatic driver suspension setting adaptability
Four-wheel disc brakes with four-channel anti-lock braking system, brake assist and electronic parking brake
Standard StabiliTrak stability control system and full-function traction control
Standard dual-stage frontal air bags, side-curtain air bags and pedal-release system; rear-seat thorax air bags available
Available navigation system, Harmon Kardon sound system, internal flash drive (1GB), hard drive with 10GB for music and USB port
Standard 18-inch wheels (19-inch wheels standard with IDCS)
Standard 12-way power, leather and heated driver seat; leather and heated passenger front seat; Bluetooth capability; XM Satellite Radio and OnStar.

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