2019-2020 Audi A6 Sedan (C8) 55 TFSI e (367 Hp) Plug-in Hybrid quattro ultra S tronic

The Audi A6 55 TFSI e, produced from October 2019 to December 2020, represents Audi’s foray into plug-in hybrid technology within the C8 generation A6 sedan. Positioned as a premium offering, this variant combined a 2.0-liter turbocharged four-cylinder engine with an electric motor, delivering a combined system output of 367 horsepower. It aimed to provide a balance of performance, efficiency, and electric-only driving capability, appealing to buyers seeking a more environmentally conscious luxury vehicle. The 55 TFSI e was a key component of Audi’s strategy to electrify its lineup and meet increasingly stringent emissions regulations, primarily targeting the European market, though limited examples were available in North America.

Technical Specifications

Powertrain & Engine Architecture

The A6 55 TFSI e’s powertrain centers around Audi’s DLZA 2.0-liter turbocharged inline-four cylinder engine. This engine, a member of the EA888 family, utilizes direct fuel injection and a single twin-scroll turbocharger to produce 252 horsepower. The engine’s design emphasizes efficiency, featuring an optimized combustion chamber and reduced internal friction. Integrated with the engine is a 143 horsepower electric motor, positioned between the engine and the seven-speed S tronic dual-clutch transmission. This placement allows for both electric drive and the blending of power from the engine and motor. The 14.1 kWh lithium-ion battery pack is located under the trunk floor, impacting cargo space. The S tronic transmission is crucial to the hybrid system, enabling smooth transitions between electric, hybrid, and gasoline-only modes. The quattro all-wheel-drive system is integrated, providing enhanced traction and stability.

Driving Characteristics

The 55 TFSI e delivers a noticeably different driving experience compared to A6 variants equipped with solely gasoline engines. In electric-only mode, the car offers near-silent acceleration and a range of 46-55 km (28.6-34.2 miles) depending on driving conditions. The instant torque from the electric motor provides brisk acceleration from a standstill. When the engine and motor work in tandem, the combined 367 horsepower results in a 0-60 mph time of around 5.3 seconds. The S tronic transmission provides quick and precise gear changes, contributing to the car’s responsive feel. Compared to the A6 45 TFSI, the 55 TFSI e offers similar overall performance but with the added benefit of electric driving. Compared to higher-performance A6 models like the S6, the 55 TFSI e prioritizes efficiency over outright speed, but still delivers a respectable level of performance.

Equipment & Trim Levels

The 55 TFSI e typically came well-equipped, reflecting its premium positioning. Standard features included Audi’s virtual cockpit digital instrument cluster, a touchscreen infotainment system with navigation, leather upholstery, three-zone automatic climate control, and a suite of driver-assistance systems such as adaptive cruise control and lane-keeping assist. Exterior features often included distinctive “TFSI e” badging and unique wheel designs. Optional extras included a Bang & Olufsen sound system, massaging front seats, and a head-up display. The interior trim levels were generally aligned with other A6 models, offering a range of wood, aluminum, and carbon fiber accents.

Chassis & Braking

The A6 55 TFSI e utilizes a sophisticated chassis design featuring independent multi-link suspension at both the front and rear axles. This setup provides a comfortable ride quality while maintaining good handling characteristics. The added weight of the battery pack, however, does slightly alter the car’s weight distribution. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. ABS, electronic stability control, and traction control are standard features. The steering is electrically assisted, offering precise and responsive control.

Market Reception & Comparison

The Audi A6 55 TFSI e was generally well-received by automotive critics. Reviewers praised its blend of performance, efficiency, and refinement. The electric-only range was considered competitive, and the seamless integration of the hybrid powertrain was noted as a strength. Compared to other plug-in hybrid sedans in its class, such as the BMW 530e and Mercedes-Benz E350e, the A6 55 TFSI e offered a similar level of performance and features. Fuel economy was a key selling point, with the car achieving significantly higher MPG figures in hybrid mode compared to conventional gasoline-powered A6 models. However, the reduced trunk space due to the battery pack was a common criticism.

Legacy

The A6 55 TFSI e represents an important step in Audi’s transition towards electrification. While production was relatively short-lived, the model demonstrated Audi’s commitment to plug-in hybrid technology. On the used car market, these models hold their value reasonably well, particularly those with low mileage and a well-maintained service history. The powertrain has proven to be generally reliable, although the complexity of the hybrid system does require specialized maintenance. The A6 55 TFSI e paved the way for Audi’s subsequent fully electric models and continues to be a desirable option for buyers seeking a sophisticated and efficient luxury sedan.