Regal wears the appearance of contemporary Buick, with cues that reinforce its low, wide proportion and convey an upscale ambience through technology. The prominent, sweptback headlamps are available in two versions, including halogen projector beams and Xenon high-intensity discharge.
Inviting interior
The 2015 Regal’s interior blends sculptural beauty and refinement with technology, centered on Buick’s next-generation IntelliLink infotainment system. The instrument panel “center stack” houses the system’s eight-inch color touch screen. It is designed for easy operation with intuitive controls and smartphone-influenced swipe recognition for easier navigation.
Refined, efficient powertrains
Regals is equipped with a choice of two efficient engines: the standard 2.0L turbo four-cylinder engine rated at 259 horsepower (193 kW) and a 2.4L four-cylinder engine witheAssist light electrification technology, rated at 182 horsepower (136 kW)).
The eAssist powertrain uses a lithium-ion battery system and electric motor-generator to enable regenerative braking capability. Instead of providing all-electric propulsion, the system provides power assistance to the internal combustion engine. The eAssist system also allows the engine to shut down fuel delivery in certain deceleration situations, or at a stop, which saves additional fuel.
Regal witheAssist is EPA-rated at 25 mpg in the city and 36 mpg on the highway.
The standard 2.0L engine’s turbocharger features a twin-scroll design that uses exhaust tuning to generate balance between maximum power and excellent turbo response, enabling the engine to deliver a broad torque band. In fact, it delivers 90 percent (260 lb-ft / 353 Nm) of its peak torque from 1,700 rpm to 5,500 rpm and a full 295 lb-ft of peak torque (400 Nm) from 3,000 to 4,000 rpm in the Regal. For the Regal GS, peak torque is reached at 2,500 rpm and is maintained through 4,000 rpm. Those broad torque bands are supported by boost levels as high as 24 psi (1.65 bar) in the speed range, engineered to give the Regal and Regal GS assuring, exhilarating feelings of immediate power on demand.
Six-speed automatic transmissions are matched with the engines. GS customers have the choice of a six-speed manual, as well, at no additional cost – making it one of the few vehicles in the segment to offer a turbocharged engine with manual transmission.