The 2013 Buick Regal comes in two basic trim levels: base and Turbo. Each of these trim levels is eligible for different Premium option groups. The high-performance GS stands by itself.
The base Regal comes well-equipped with standard features that include 17-inch alloy wheels, automatic headlights, foglights, heated mirrors, keyless entry, cruise control, dual-zone automatic climate control, leather upholstery, heated front seats, an eight-way power driver seat (with four-way power lumbar), a power height-adjustable passenger seat, split-folding rear seats, a tilt-and-telescoping steering wheel and an auto-dimming rearview mirror. Also standard are a customizable touchscreen interface, Bluetooth phone and audio connectivity, OnStar emergency communications, and a seven-speaker audio system with a CD player, satellite radio, an auxiliary audio jack, an iPod/USB audio interface and IntelliLink smartphone integration.
The Premium 1 Group adds rear parking sensors, keyless entry/ignition, remote ignition and an eight-way power passenger seat (with four-way power lumbar). Moving up to the Premium 2 trim level gets you xenon headlights, rear-seat side airbags and a nine-speaker Harman Kardon surround-sound audio system.
The Turbo versions of these two Groups add 18-inch wheels and a heated steering wheel along with unique powertrain components. The Premium 3 is a Turbo-only trim and gets 19-inch alloy wheels, an adaptive suspension and adjustable driving settings.
The top-of-the-line GS includes those items plus a more powerful turbocharged engine, sport-tuned suspension, Brembo brakes, front parking sensors, unique exterior and interior accents, front sport seats, a thick-rimmed three-spoke steering wheel and a version of the Interactive Drive Control system modified for sportier driving. The Regal GS can also be had with optional 20-inch wheels with summer performance tires.
Other options available across the lineup include a sunroof and a navigation system (not available on base and Premium 1 models).