Core 540i Features (applies to all 540i models):

• Engine: 3.0-liter turbocharged inline-six (B58), producing 335 horsepower and 332 lb-ft of torque.

• Transmission: 8-speed automatic.

• Drivetrain: Standard Rear-Wheel Drive (RWD), with xDrive All-Wheel Drive (AWD) as an option.

• Infotainment: iDrive 6.0 system with a 10.3-inch display, navigation, and voice control.

• Standard Interior: Dakota leather upholstery, power-adjustable front seats, dual-zone automatic climate control, universal garage door opener, and ambient interior lighting.

• Standard Safety: Rearview camera, front and rear parking sensors, LED headlights, and a suite of active safety features like frontal collision warning and lane departure warning (often part of standard or optional packages).

Luxury Line Specifics (compared to standard or Sport Line):

The Luxury Line distinguished itself with more refined and elegant touches, typically featuring:

• Exterior:

  • Chrome accents: This is a key differentiator. The Luxury Line often had more chrome trim around the kidney grille, window surrounds, and exhaust finishers, in contrast to the M Sport's darker, high-gloss black elements.

  • Unique Wheel Designs: Specific multi-spoke or V-spoke alloy wheel designs with a more elegant finish, often 18 or 19 inches.

  • "Luxury Line" badging on the side fenders.

• Interior:

  • Wood trim: Often featured specific fine-wood trim options (e.g., Fineline Ridge or Poplar Grain) with a high-gloss finish, creating a warmer and more traditional luxury feel.

  • Dakota Leather upholstery was typically standard, with Nappa leather as an upgrade, sometimes with specific stitching or color options tied to the Luxury Line.

  • Ambient lighting often came with extended color options.

Key Optional Packages and Features (available on the 540i, and often combined with Luxury Line):

While the Luxury Line defined the aesthetic, many desirable features were part of separate option packages:

• Premium Package: Often included Icon Adaptive Full LED Headlights, Comfort Access keyless entry, WiFi Hotspot, SiriusXM Satellite Radio, and wireless charging.

• Driving Assistance Package: Included a Head-Up Display (HUD), Parking Assistant, and Active Park Distance Control.

• Driving Assistance Plus Package: Added more advanced driver assistance systems like active cruise control with stop and go, active lane keeping assist, blind-spot detection, frontal collision mitigation, and surround view cameras with 3D view.

• Luxury Seating Package: Offered multi-contour front seats with ventilation and massage functions.

• Cold Weather Package: Included heated front and rear seats, and a heated steering wheel.

• Dynamic Handling Package: For those who wanted more athletic driving dynamics, this added adaptive dampers and active roll stabilization, enhancing handling while still maintaining ride comfort.

• Bowers & Wilkins Diamond Surround Sound System: A high-end audio upgrade.

• Gesture Control: Allowed certain infotainment functions to be controlled with hand gestures.

In essence, a "2017 BMW 540i LUX" was a 540i that leaned into the classic luxury appeal with its distinct styling cues and interior finishes, while still benefiting from the powerful B58 engine and the comprehensive technology suite of the G30 5 Series.