2015-2018 BMW M6 Convertible (F12M LCI facelift ) Competition 4.4 V8 (600 Hp) M DCT

The BMW M6 Convertible (F12M, LCI) Competition, produced from July 2015 to April 2018, represents the pinnacle of open-top performance within the F12 M6 generation. This variant, distinguished by its uprated 4.4-liter twin-turbocharged V8 engine producing 600 horsepower, and paired exclusively with the 7-speed M Dual Clutch Transmission (M DCT), was positioned as the highest-performance iteration of the M6 Convertible. The “LCI” designation refers to a Life Cycle Impulse, or facelift, which brought subtle styling revisions and technological updates to the F12 series.

Technical Specifications

INTRODUCTION

The BMW M6 Convertible (F12M, LCI) Competition, launched in mid-2015, represented the culmination of BMW’s high-performance convertible engineering. Built on the F12 platform – shared with the 6-Series – the M6 Convertible offered a luxurious grand touring experience combined with exhilarating performance. The Competition package, introduced with the LCI facelift, further enhanced the car’s capabilities, solidifying its position as a flagship model. It served as a direct competitor to high-end convertibles from Porsche, Aston Martin, and Mercedes-Benz.

Powertrain & Engine Architecture

At the heart of the M6 Competition lies the S63B44T0 engine, a 4.4-liter twin-turbocharged V8. This engine builds upon the already potent S63 engine found in earlier F12 M6 models, but with significant upgrades to deliver an additional 45 horsepower. These upgrades included revised turbocharger tuning, direct fuel injection operating at 350 bar, and optimized engine management software. The engine produces a peak torque of 700 Nm (516 lb-ft) available from a low 1500 rpm, providing immense pulling power throughout the rev range. The engine utilizes a double-VANOS variable valve timing system and a dry-sump lubrication system to ensure consistent oil supply during aggressive driving. Paired exclusively with the 7-speed M Dual Clutch Transmission (M DCT), the M6 Competition offers lightning-fast gear changes and precise control. The M DCT features Drivelogic, allowing the driver to select from various shift programs tailored to different driving styles.

Driving Characteristics

The M6 Competition Convertible delivers a driving experience characterized by effortless power and refined handling. The 600 horsepower and 700 Nm of torque translate into blistering acceleration – 0 to 60 mph in approximately 4.1 seconds. The M DCT transmission plays a crucial role in maximizing performance, providing seamless shifts and allowing the driver to maintain optimal engine speed. Compared to the standard M6 Convertible, the Competition model benefits from a more aggressive engine tune and revised suspension settings, resulting in sharper handling and increased responsiveness. While the added power is noticeable, the M6 Competition remains remarkably tractable for everyday driving, thanks to the broad torque curve and the sophisticated transmission. The convertible top, while adding some weight, does not significantly detract from the car’s dynamic capabilities.

Equipment & Trim Levels

The M6 Competition Convertible came standard with a comprehensive array of luxury and performance features. Interior appointments included Merino leather upholstery, multi-contour seats with massage function, and carbon fiber trim. Standard technology included BMW’s iDrive infotainment system with a high-resolution display, navigation, and a premium sound system. Optional extras included a head-up display, active roll stabilization, and a variety of exterior customization options. The Competition package also included unique exterior styling cues, such as black kidney grilles and side gills, and a distinctive exhaust system. Interior color choices were extensive, allowing buyers to personalize their vehicle to their preferences.

Chassis & Braking

The M6 Competition Convertible features a sophisticated chassis designed to maximize handling and stability. The suspension utilizes a double-wishbone front axle and an independent multi-link rear axle, optimized for performance driving. Adaptive dampers are standard, allowing the driver to adjust the suspension stiffness to suit their preferences. Braking performance is provided by large, ventilated discs with multi-piston calipers – 400mm at the front and 396mm at the rear. The M6 Competition also incorporates BMW’s Dynamic Stability Control (DSC) system, which helps to maintain control in challenging driving conditions. The steering is a hydraulic rack-and-pinion system, providing precise and communicative feedback.

Market Reception & Comparison

The M6 Competition Convertible was generally well-received by automotive critics, who praised its exceptional performance, luxurious interior, and refined driving experience. Compared to the standard M6 Convertible, the Competition model was lauded for its increased power and sharper handling. However, some critics noted the car’s high price tag and relatively high fuel consumption. Compared to rivals such as the Porsche 911 Turbo Cabriolet and the Mercedes-Benz S-Class Cabriolet, the M6 Competition offered a unique blend of performance and luxury. Fuel economy, while not a primary concern for buyers in this segment, averaged around 22.8 US mpg in combined driving.

Legacy

The BMW M6 Competition Convertible (F12M, LCI) remains a highly desirable vehicle in the used car market. Its potent powertrain, luxurious interior, and exclusive status continue to attract enthusiasts. The S63B44T0 engine, while complex, has proven to be relatively reliable when properly maintained. Common maintenance items include regular oil changes, spark plug replacement, and inspection of the cooling system. The M DCT transmission is also generally reliable, but requires periodic servicing. The F12 M6 Competition represents a high point in BMW’s convertible performance history, offering a compelling combination of power, luxury, and driving enjoyment.